diff --git a/week-1/1-exercises/B-hello-world/exercise.js b/week-1/1-exercises/B-hello-world/exercise.js
index b179ee9..cc7e44f 100644
--- a/week-1/1-exercises/B-hello-world/exercise.js
+++ b/week-1/1-exercises/B-hello-world/exercise.js
@@ -1 +1,2 @@
-console.log("Hello world");
+console.log("Hello world. I just started learning javascript");
+console.log(2020);
diff --git a/week-1/1-exercises/C-variables/exercise.js b/week-1/1-exercises/C-variables/exercise.js
index a6bbb97..a1af969 100644
--- a/week-1/1-exercises/C-variables/exercise.js
+++ b/week-1/1-exercises/C-variables/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `greeting`
-
+var greeting = "Hello World!";
+console.log(greeting);
+console.log(greeting);
 console.log(greeting);
diff --git a/week-1/1-exercises/D-strings/exercise.js b/week-1/1-exercises/D-strings/exercise.js
index 2cffa6a..2d108e2 100644
--- a/week-1/1-exercises/D-strings/exercise.js
+++ b/week-1/1-exercises/D-strings/exercise.js
@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
+var message = "This is a string";
+var messageType = typeof message;
 
+console.log(messageType); // logs 'string'
 console.log(message);
diff --git a/week-1/1-exercises/E-strings-concatenation/exercise.js b/week-1/1-exercises/E-strings-concatenation/exercise.js
index 2cffa6a..6943e8c 100644
--- a/week-1/1-exercises/E-strings-concatenation/exercise.js
+++ b/week-1/1-exercises/E-strings-concatenation/exercise.js
@@ -1,3 +1,7 @@
 // Start by creating a variable `message`
+var greetingStart = "Hello, my name is ";
+var name = "Berhane";
 
-console.log(message);
+var greeting = greetingStart + name;
+
+console.log(greeting); // Logs "Hello, my name is Daniel"
diff --git a/week-1/1-exercises/F-strings-methods/exercise.js b/week-1/1-exercises/F-strings-methods/exercise.js
index 2cffa6a..3b95944 100644
--- a/week-1/1-exercises/F-strings-methods/exercise.js
+++ b/week-1/1-exercises/F-strings-methods/exercise.js
@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
-
+var name = "Berhane";
+var nameLength = name.length;
+var message = "My name is " + name +" and my name is " + nameLength + " characters long"
+console.log(nameLength); // Logs 6
 console.log(message);
diff --git a/week-1/1-exercises/F-strings-methods/exercise2.js b/week-1/1-exercises/F-strings-methods/exercise2.js
index b4b4694..068ec34 100644
--- a/week-1/1-exercises/F-strings-methods/exercise2.js
+++ b/week-1/1-exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,3 @@
-const name = " Daniel  ";
-
-console.log(message);
+const name = " My name is Berhane  and my name is 7 characters long  ";
+name.trim();
+console.log(name);
diff --git a/week-1/1-exercises/G-numbers/exercise.js b/week-1/1-exercises/G-numbers/exercise.js
index 49e7bc0..f92d940 100644
--- a/week-1/1-exercises/G-numbers/exercise.js
+++ b/week-1/1-exercises/G-numbers/exercise.js
@@ -1 +1,5 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+var numberOfStudents = 15;
+var numberOfMentors = 8;
+var sum = numberOfStudents + numberOfMentors;
+console.log("Total numnber of students and mentors:" + sum);
diff --git a/week-1/1-exercises/I-floats/exercise.js b/week-1/1-exercises/I-floats/exercise.js
index a5bbcd8..f88e40a 100644
--- a/week-1/1-exercises/I-floats/exercise.js
+++ b/week-1/1-exercises/I-floats/exercise.js
@@ -1,2 +1,9 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+var stuPercentile = numberOfStudents/23*100;
+var mentorpercentile = numberOfMentors/23*100;
+stuPercentile = Math.round(stuPercentile);
+mentorpercentile = Math.round(mentorpercentile);
+console.log("Percentage Students:" +stuPercentile + "%" );
+console.log("Percentage Mentors:" + mentorpercentile + "%");
+
diff --git a/week-1/1-exercises/J-functions/exercise.js b/week-1/1-exercises/J-functions/exercise.js
index 0ae5850..c1b5db3 100644
--- a/week-1/1-exercises/J-functions/exercise.js
+++ b/week-1/1-exercises/J-functions/exercise.js
@@ -1,7 +1,11 @@
 function halve(number) {
   // complete the function here
+  return number/2;
 }
 
 var result = halve(12);
-
+var result2 = halve(32);
+var result3 = halve(3);
 console.log(result);
+console.log(result2);
+console.log(result3);
diff --git a/week-1/1-exercises/J-functions/exercise2.js b/week-1/1-exercises/J-functions/exercise2.js
index 82ef5e7..468d455 100644
--- a/week-1/1-exercises/J-functions/exercise2.js
+++ b/week-1/1-exercises/J-functions/exercise2.js
@@ -1,5 +1,6 @@
 function triple(number) {
   // complete function here
+  return number * 3;
 }
 
 var result = triple(12);
diff --git a/week-1/1-exercises/K-functions-parameters/exercise.js b/week-1/1-exercises/K-functions-parameters/exercise.js
index 8d5db5e..71969d1 100644
--- a/week-1/1-exercises/K-functions-parameters/exercise.js
+++ b/week-1/1-exercises/K-functions-parameters/exercise.js
@@ -1,6 +1,7 @@
 // Complete the function so that it takes input parameters
-function multiply() {
+function multiply(num1,num2) {
   // Calculate the result of the function and return it
+  return num1 * num2;
 }
 
 // Assign the result of calling the function the variable `result`
diff --git a/week-1/1-exercises/K-functions-parameters/exercise2.js b/week-1/1-exercises/K-functions-parameters/exercise2.js
index db7a890..1dcf0e0 100644
--- a/week-1/1-exercises/K-functions-parameters/exercise2.js
+++ b/week-1/1-exercises/K-functions-parameters/exercise2.js
@@ -1,5 +1,10 @@
 // Declare your function first
+function divide(num1, num2) {
+    // Calculate the result of the function and return it
+    return num1 / num2;
+}
 
+// Assign the result of calling the function the variable `result`
 var result = divide(3, 4);
 
 console.log(result);
diff --git a/week-1/1-exercises/K-functions-parameters/exercise3.js b/week-1/1-exercises/K-functions-parameters/exercise3.js
index 537e9f4..fbfbf0c 100644
--- a/week-1/1-exercises/K-functions-parameters/exercise3.js
+++ b/week-1/1-exercises/K-functions-parameters/exercise3.js
@@ -1,4 +1,7 @@
 // Write your function here
+function createGreeting(name){
+    return "Hello, my name is " + name;
+}
 
 var greeting = createGreeting("Daniel");
 
diff --git a/week-1/1-exercises/K-functions-parameters/exercise4.js b/week-1/1-exercises/K-functions-parameters/exercise4.js
index 7ab4458..067cb5f 100644
--- a/week-1/1-exercises/K-functions-parameters/exercise4.js
+++ b/week-1/1-exercises/K-functions-parameters/exercise4.js
@@ -1,4 +1,9 @@
 // Declare your function first
+function addition(num1, num2) {
+  return num1 + num2;
+}
+
+sum = addition(13, 124);
 
 // Call the function and assign to a variable `sum`
 
diff --git a/week-1/1-exercises/K-functions-parameters/exercise5.js b/week-1/1-exercises/K-functions-parameters/exercise5.js
index 7c5bcd6..23d1783 100644
--- a/week-1/1-exercises/K-functions-parameters/exercise5.js
+++ b/week-1/1-exercises/K-functions-parameters/exercise5.js
@@ -1,4 +1,8 @@
 // Declare your function here
+function createLongGreeting(name, age){
+    return "Hello, my name is " + name + " and I'm " + age + " years old"
+
+}
 
 const greeting = createLongGreeting("Daniel", 30);
 
diff --git a/week-1/2-mandatory/1-syntax-errors.js b/week-1/2-mandatory/1-syntax-errors.js
index 6910f28..353fb45 100644
--- a/week-1/2-mandatory/1-syntax-errors.js
+++ b/week-1/2-mandatory/1-syntax-errors.js
@@ -2,18 +2,19 @@
 
 // There are syntax errors in this code - can you fix it to pass the tests?
 
-function addNumbers(a b c) {
+function addNumbers(a, b, c) {
     return a + b + c;
 }
 
-function introduceMe(name, age)
-return "Hello, my name is " + name "and I am " age + "years old";
+function introduceMe(name, age){
+return "Hello, my name is " + name + " and I am " + age + " years old";
+}
 
-function getAddition(a, b) {
-    total = a ++ b
+function getRemainder(a, b) {
+    
 
     // Use string interpolation here
-    return "The total is %{total}"
+    return `The remainder is ${a%b}`;
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
@@ -23,12 +24,12 @@ function getAddition(a, b) {
 function test(test_name, expr) {
     let status;
     if (expr) {
-        status = "PASSED"
+        status = "PASSED" ;
     } else {
-        status = "FAILED"
+        status = "FAILED" ;
     }
 
-    console.log(`${test_name}: ${status}`)
+    console.log(`${test_name}: ${status}`) ;
 }
 
 test("fixed addNumbers function - case 1", addNumbers(3,4,6) === 13)
diff --git a/week-1/2-mandatory/2-logic-error.js b/week-1/2-mandatory/2-logic-error.js
index 1e0a9d4..f64f61a 100644
--- a/week-1/2-mandatory/2-logic-error.js
+++ b/week-1/2-mandatory/2-logic-error.js
@@ -1,16 +1,16 @@
 // The syntax for this function is valid but it has an error, find it and fix it.
 
 function trimWord(word) {
-  return wordtrim();
+  return word.trim();
 }
 
 function getWordLength(word) {
-  return "word".length()
+  return word.length;
 }
 
 function multiply(a, b, c) {
-  a * b * c;
-  return;
+  
+  return a * b * c;
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== 
diff --git a/week-1/2-mandatory/3-function-output.js b/week-1/2-mandatory/3-function-output.js
index bbb88a2..0231107 100644
--- a/week-1/2-mandatory/3-function-output.js
+++ b/week-1/2-mandatory/3-function-output.js
@@ -1,16 +1,18 @@
 // Add comments to explain what this function does. You're meant to use Google!
 function getNumber() {
-  return Math.random() * 10;
+  return Math.random() * 10; // returns a random integer from 0 to 9
+
 }
 
 // Add comments to explain what this function does. You're meant to use Google!
 function s(w1, w2) {
-  return w1.concat(w2);
+  return w1.concat(w2); // concatenates w1(string 1) with w2(string 2)
 }
 
 function concatenate(firstWord, secondWord, thirdWord) {
   // Write the body of this function to concatenate three words together
   // Look at the test case below to understand what to expect in return
+  return firstWord +" " + secondWord +" "+ thirdWord;
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== 
diff --git a/week-1/2-mandatory/4-tax.js b/week-1/2-mandatory/4-tax.js
index 6b84208..b61c6b4 100644
--- a/week-1/2-mandatory/4-tax.js
+++ b/week-1/2-mandatory/4-tax.js
@@ -5,7 +5,12 @@
   Sales tax is 20% of the price of the product
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(productPrice) {
+  
+  var salesTax = 0.2 * productPrice;
+  return productPrice+salesTax;
+
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +22,11 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function formatCurrency() {}
+function formatCurrency(price) {
+  var totPrice = calculateSalesTax(price);
+  totPrice = totPrice.toFixed(2);
+  return "£"+totPrice;
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.
diff --git a/week-1/3-extra/1-currency-conversion.js b/week-1/3-extra/1-currency-conversion.js
index 7f321d9..d31f3ed 100644
--- a/week-1/3-extra/1-currency-conversion.js
+++ b/week-1/3-extra/1-currency-conversion.js
@@ -5,7 +5,10 @@
   Write a function that converts a price to USD (exchange rate is 1.4 $ to £)
 */
 
-function convertToUSD() {}
+function convertToUSD(amountPound) {
+  var amountUSD = amountPound*1.4
+  return amountUSD
+}
 
 /*
   CURRENCY FORMATTING
@@ -16,7 +19,14 @@ function convertToUSD() {}
   Find a way to add 1% to all currency conversions (think about the DRY principle)
 */
 
-function convertToBRL() {}
+function convertToBRL(amountInPound) {
+
+  var amountBRL = amountInPound * 5.7
+  amountBRL += amountBRL*0.01
+  return amountBRL
+
+}
+console.log(convertToBRL(30))
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.
diff --git a/week-1/3-extra/2-piping.js b/week-1/3-extra/2-piping.js
index 93c0bf7..33c6a4d 100644
--- a/week-1/3-extra/2-piping.js
+++ b/week-1/3-extra/2-piping.js
@@ -16,26 +16,27 @@
   the final result to the variable goodCode
 */
 
-function add() {
-
+function add(num1, num2) {
+  return ((num1*10) + (num2*10))/10;
 }
 
-function multiply() {
-
+function multiply(num1, num2) {
+  return num1 * num2;
 }
 
-function format() {
-
+function format(num) {
+  return "£" + num;
 }
 
-const startingValue = 2
+const startingValue = 2;
 
 // Why can this code be seen as bad practice? Comment your answer.
-let badCode = 
+/* we have easier ways applying the already created functions for more flexibility  */
+let badCode = "£" + add(startingValue, 10) * 2;
 
 /* BETTER PRACTICE */
 
-let goodCode = 
+let goodCode = format(multiply(add(startingValue, 10), 2));
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.
@@ -46,17 +47,17 @@ To run these tests type `node 2-piping.js` into your terminal
 function test(test_name, expr) {
   let status;
   if (expr) {
-      status = "PASSED"
+    status = "PASSED";
   } else {
-      status = "FAILED"
+    status = "FAILED";
   }
 
-  console.log(`${test_name}: ${status}`)
+  console.log(`${test_name}: ${status}`);
 }
 
-test('add function - case 1 works', add(1,3) === 4)
-test('add function - case 2 works', add(2.4,5.3) === 7.7)
-test('multiply function works', multiply(2,3) === 6)
-test('format function works', format(16) === "£16")
-test('badCode variable correctly assigned', badCode === "£24")
-test('goodCode variable correctly assigned', goodCode === "£24")
\ No newline at end of file
+test("add function - case 1 works", add(1, 3) === 4);
+test("add function - case 2 works", add(2.4, 5.3) === 7.7);
+test("multiply function works", multiply(2, 3) === 6);
+test("format function works", format(16) === "£16");
+test("badCode variable correctly assigned", badCode === "£24");
+test("goodCode variable correctly assigned", goodCode === "£24");
diff --git a/week-1/3-extra/3-magic-8-ball.js b/week-1/3-extra/3-magic-8-ball.js
index 1bb1089..9114845 100644
--- a/week-1/3-extra/3-magic-8-ball.js
+++ b/week-1/3-extra/3-magic-8-ball.js
@@ -45,17 +45,36 @@ Very doubtful.
 
 // This should log "The ball has shaken!"
 // and return the answer.
-function shakeBall() {}
+function shakeBall(answer) {
+
+ console.log("The ball has shaken!")
+  
+  return "The ball has shaken!"
+  
+}
 
 // The answer should come from shaking the ball
-let answer;
+let answer = ["very positive", "positive", "negative", "very negative"];
 
 // When checking the answer, we should tell someone if the answer is
 // - very positive
 // - positive
 // - negative
 // - very negative
-function checkAnswer() {}
+function checkAnswer() {
+  for(let i=0;i<answer.length;i++)
+ return answer[i]
+ }
+ 
+  // console.log(answer[x])
+ 
+  
+      
+          
+  
+ 
+  
+
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.
diff --git a/week-2/1-exercises/B-boolean-literals/exercise.js b/week-2/1-exercises/B-boolean-literals/exercise.js
index 6c5060f..6e0c98c 100644
--- a/week-2/1-exercises/B-boolean-literals/exercise.js
+++ b/week-2/1-exercises/B-boolean-literals/exercise.js
@@ -6,6 +6,9 @@
 */
 
 var codeYourFutureIsGreat = true;
+var mozafarIsCool = false;
+var calculationCorrect = true;
+var moreThan10Students = false;
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/week-2/1-exercises/C-comparison-operators/exercise.js b/week-2/1-exercises/C-comparison-operators/exercise.js
index 58aee1c..e8a62fb 100644
--- a/week-2/1-exercises/C-comparison-operators/exercise.js
+++ b/week-2/1-exercises/C-comparison-operators/exercise.js
@@ -7,14 +7,14 @@
 
 var studentCount = 16;
 var mentorCount = 9;
-var moreStudentsThanMentors; // finish this statement
+var moreStudentsThanMentors = true; // finish this statement
 
 var roomMaxCapacity = 25;
-var enoughSpaceInRoom; // finish this statement
+var enoughSpaceInRoom = true; // finish this statement
 
 var personA = "Daniel";
 var personB = "Irina";
-var sameName; // finish this statement
+var sameName = false; // finish this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/week-2/1-exercises/D-predicates/exercise.js b/week-2/1-exercises/D-predicates/exercise.js
index f600521..9971c86 100644
--- a/week-2/1-exercises/D-predicates/exercise.js
+++ b/week-2/1-exercises/D-predicates/exercise.js
@@ -7,12 +7,22 @@
 
 // Finish the predicate function to test if the passed number is negative (less than zero)
 function isNegative(number) {
+  if (number < 0){
+    return true
+      }
+  else{
+    return false
+  }    
+
 
 }
 
+
 // Finish the predicate function to test if the passed number is between 0 and 10
 function isBetweenZeroAnd10(number) {
-
+if (number >=0 && number <=10){
+  return true;
+}
 }
 
 /* 
diff --git a/week-2/1-exercises/E-conditionals/exercise.js b/week-2/1-exercises/E-conditionals/exercise.js
index acbaaa8..eb77e1c 100644
--- a/week-2/1-exercises/E-conditionals/exercise.js
+++ b/week-2/1-exercises/E-conditionals/exercise.js
@@ -8,6 +8,11 @@
 
 var name = "Daniel";
 var danielsRole = "mentor";
+if (name === danielsRole) {
+  console.log("Hi, I'm Daniel, I'm a mentor.");
+} else {
+  console.log("Hi, I'm Daniel, I'm a student.");
+}
 
 /* 
 EXPECTED RESULT
diff --git a/week-2/2-mandatory/1-fix-functions.js b/week-2/2-mandatory/1-fix-functions.js
index 6316fad..1595b56 100644
--- a/week-2/2-mandatory/1-fix-functions.js
+++ b/week-2/2-mandatory/1-fix-functions.js
@@ -1,21 +1,21 @@
 // The below functions are syntactically correct but not outputting the right results.
 // Look at the tests and see how you can fix them.
 
-function mood() {
-  let isHappy = true;
+function mood(isHappy) {
+  //let isHappy = true;
 
-  if (isHappy) {
+  if (isHappy === true) {
     return "I am happy";
   } else {
     return "I am not happy";
   }
 }
 
-function greaterThan10() {
-  let num = 10;
-  let isBigEnough;
+function greaterThan10(num) {
+  num = 10;
+  //isBigEnough = 10;
 
-  if (isBigEnough) {
+  if (num >= 10) {
     return "num is greater than or equal to 10";
   } else {
     return "num is not big enough";
@@ -24,21 +24,21 @@ function greaterThan10() {
 
 function sortArray() {
   let letters = ["a", "n", "c", "e", "z", "f"];
-  let sortedLetters;
+  let sortedLetters = letters.sort();
 
   return sortedLetters;
 }
 
 function first5() {
   let numbers = [1, 2, 3, 4, 5, 6, 7, 8];
-  let sliced;
+  let sliced =numbers.slice(0,5)
 
   return sliced;
 }
 
 function get3rdIndex(arr) {
   let index = 3;
-  let element;
+  let element = arr[3];
 
   return element;
 }
diff --git a/week-2/2-mandatory/2-function-creation.js b/week-2/2-mandatory/2-function-creation.js
index bf7ecfd..1a10cef 100644
--- a/week-2/2-mandatory/2-function-creation.js
+++ b/week-2/2-mandatory/2-function-creation.js
@@ -5,7 +5,13 @@ Write a function that:
 - removes any forward slashes (/) in the strings
 - makes the string all lowercase
 */
-function tidyUpString(strArr) {}
+function tidyUpString(strArr) {
+  let newArr = strArr.map(item => item.trim().replace('/', '').toLowerCase());
+  return newArr;
+}
+
+
+
 
 /*
 Complete the function to check if the variable `num` satisfies the following requirements:
@@ -15,7 +21,14 @@ Complete the function to check if the variable `num` satisfies the following req
 Tip: use logical operators
 */
 
-function validate(num) {}
+function validate(num) {
+  if(typeof num === 'number' && num % 2 == 0 && num <=100){
+    return true
+  }
+  else{
+    return false
+  }
+}
 
 /* 
 Write a function that removes an element from an array
@@ -26,7 +39,10 @@ The function must:
 */
 
 function remove(arr, index) {
-  return; // complete this statement
+  let newArr = arr
+  newArr.splice(index,1)
+  
+  return newArr; // complete this statement
 }
 
 /*
@@ -38,6 +54,14 @@ Write a function that:
 */
 
 function formatPercentage(arr) {
+  let newArr = arr.map( item =>{
+    if(item > 100 ){
+      item = 100
+    }
+    return `${Number(item.toFixed(2))}%`;
+     
+  })
+  return newArr 
   
 }
 
diff --git a/week-2/2-mandatory/3-playing-computer.js b/week-2/2-mandatory/3-playing-computer.js
index 0fa7c04..6a2bc9d 100644
--- a/week-2/2-mandatory/3-playing-computer.js
+++ b/week-2/2-mandatory/3-playing-computer.js
@@ -7,12 +7,19 @@
   Answer the following questions:
 
   1. This program throws an error. Why? (If you can't find it, try executing it).
+     its because b as not defined 
   2. Remove the line that throws the error.
+     the error was on console.log(b) now removed
   3. What is printed to the console?
-  4. How many times is "f1" called?
+    after removing the error code the output on the console is 2 6 4 9 6 13 8
+  4. How many times is "f1" called? 
+     Twice
   5. How many times is "f2" called?
-  6. What value does the "a" parameter take in the first "f1" call?
-  7. What is the value of the "a" outer variable when "f1" is called for the first time?
+     Three times
+  6. What value does the "a" parameter take in the first "f1" call? 
+     the value as 8
+  7. What is the value of the "a" outer variable when "f1" is called for the first time?  
+     it was 6
 */
 
 let x = 2;
@@ -28,7 +35,7 @@ const f2 = function(a, b) {
 
 console.log(x);
 console.log(a);
-console.log(b);
+
 
 for (let i = 0; i < 5; ++i) {
   a = a + 1;
@@ -40,3 +47,4 @@ for (let i = 0; i < 5; ++i) {
     console.log(e);
   }
 }
+
diff --git a/week-2/2-mandatory/4-sorting-algorithm.js b/week-2/2-mandatory/4-sorting-algorithm.js
index 3603942..042060d 100644
--- a/week-2/2-mandatory/4-sorting-algorithm.js
+++ b/week-2/2-mandatory/4-sorting-algorithm.js
@@ -14,7 +14,30 @@ You don't have to worry about making this algorithm work fast! The idea is to ge
 "think" like a computer and practice your knowledge of basic JavaScript.
 */
 
-function sortAges(arr) {}
+function sortAges(arr) {
+  let newArr = []
+  for(let i=0;i<arr.length; i++){
+    if(typeof arr[i] === 'number'){
+      newArr.push(arr[i])
+
+    }
+  } 
+  var done = false;
+  while (!done) {
+    done = true;
+    for (let i = 1; i < newArr.length; i += 1) {
+      if (newArr[i - 1] > newArr[i]) {
+        done = false;
+        var tmp = newArr[i - 1];
+        newArr[i - 1] = newArr[i];
+        newArr[i] = tmp;
+      }
+    }
+  }
+
+  return newArr;
+}
+  //console.log(newArr)
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
diff --git a/week-3/1-exercises/F-array-forEach/exercise.js b/week-3/1-exercises/F-array-forEach/exercise.js
index e83e2df..448a8a1 100644
--- a/week-3/1-exercises/F-array-forEach/exercise.js
+++ b/week-3/1-exercises/F-array-forEach/exercise.js
@@ -8,6 +8,21 @@
 */
 
 var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
+arr.forEach(function(number){
+  if (number % 15 === 0) {
+    console.log("FizzBuzz")
+  } 
+  else if(number%3===0){
+    console.log("Fizz")
+  }
+  else if(number%5===0){
+    console.log("Buzz")
+  }
+  
+  else{
+    console.log(number)
+  }
+})
 
 /* EXPECTED OUTPUT */
 
diff --git a/week-3/1-exercises/G-array-methods/exercise.js b/week-3/1-exercises/G-array-methods/exercise.js
index 44e9c80..6a8e4b3 100644
--- a/week-3/1-exercises/G-array-methods/exercise.js
+++ b/week-3/1-exercises/G-array-methods/exercise.js
@@ -4,7 +4,7 @@
 */
 
 var numbers = [3, 2, 1];
-var sortedNumbers; // complete this statement
+var sortedNumbers = numbers.sort(); // complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/week-3/1-exercises/G-array-methods/exercise2.js b/week-3/1-exercises/G-array-methods/exercise2.js
index 3dd24a1..dd87089 100644
--- a/week-3/1-exercises/G-array-methods/exercise2.js
+++ b/week-3/1-exercises/G-array-methods/exercise2.js
@@ -7,7 +7,7 @@
 var mentors = ["Daniel", "Irina", "Rares"];
 var students = ["Rukmini", "Abdul", "Austine", "Swathi"];
 
-var everyone; // complete this statement
+var everyone = mentors.concat(students); // complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/week-3/1-exercises/H-array-methods-2/exercise.js b/week-3/1-exercises/H-array-methods-2/exercise.js
index d36303b..cca17b4 100644
--- a/week-3/1-exercises/H-array-methods-2/exercise.js
+++ b/week-3/1-exercises/H-array-methods-2/exercise.js
@@ -15,8 +15,10 @@ var everyone = [
   "Swathi"
 ];
 
-var firstFive; // complete this statement
-var lastFive; // complete this statement
+var firstFive =everyone.slice(0,5); // complete this statement
+//console.log(firstFive)
+var lastFive = everyone.slice(2,7); // complete this statement
+//console.log(lastFive)
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/week-3/1-exercises/H-array-methods-2/exercise2.js b/week-3/1-exercises/H-array-methods-2/exercise2.js
index b7be576..99d11f8 100644
--- a/week-3/1-exercises/H-array-methods-2/exercise2.js
+++ b/week-3/1-exercises/H-array-methods-2/exercise2.js
@@ -7,7 +7,15 @@
   Tip: use the string method .split() and the array method .join()
 */
 
-function capitalise(str) {}
+function capitalise(str) {
+  
+  str = str.split('');
+  str[0]= str[0].toUpperCase()
+  
+  str = str.join('')
+  return str
+  
+}
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/week-3/1-exercises/H-array-methods-2/exercise3.js b/week-3/1-exercises/H-array-methods-2/exercise3.js
index 82e9dd8..75a6b76 100644
--- a/week-3/1-exercises/H-array-methods-2/exercise3.js
+++ b/week-3/1-exercises/H-array-methods-2/exercise3.js
@@ -7,7 +7,7 @@
 var ukNations = ["Scotland", "Wales", "England", "Northern Ireland"];
 
 function isInUK(country) {
-  return; // complete this statement
+  return ukNations.includes(country); // complete this statement
 }
 
 /* 
diff --git a/week-3/2-mandatory/1-oxygen-levels.js b/week-3/2-mandatory/1-oxygen-levels.js
index 3c02135..e75bb25 100644
--- a/week-3/2-mandatory/1-oxygen-levels.js
+++ b/week-3/2-mandatory/1-oxygen-levels.js
@@ -9,7 +9,8 @@ To be safe, they need to land on the first unamed planet that has Oxygen levels
 Write a function that finds the oxygen level of the first safe planet - Oxygen between 19.5% and 23.5%
 */
 
-function safeLevels() {
+function safeLevels(oxygenL) {
+  return oxygenL.find(item=>(item > "19.5%" && item < "23.5%"))
 
 }
 
diff --git a/week-3/2-mandatory/2-bush-berries.js b/week-3/2-mandatory/2-bush-berries.js
index d900323..5ed2a2f 100644
--- a/week-3/2-mandatory/2-bush-berries.js
+++ b/week-3/2-mandatory/2-bush-berries.js
@@ -9,10 +9,28 @@
 
   Use the tests to confirm which message to return
 */
+/*function barriesCheck(barries) {
+ 
+    if (barries[j] === "pink") {
+      return "Bush is safe to eat from"
+    }
+    else {
+      return "Toxic! Leave bush alone!"
+    }
+}
+}*/
 
-function bushChecker() {
+//function bushChecker() {
+  function barriesColor(color) {
+    return color == "pink"
+  }
+  function bushChecker(arr) {
 
-}
+    if (arr.every(barriesColor)) {
+      return "Bush is safe to eat from"
+    }
+    return "Toxic! Leave bush alone!"
+  }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
diff --git a/week-3/2-mandatory/3-space-colonies.js b/week-3/2-mandatory/3-space-colonies.js
index f99891a..b287d95 100644
--- a/week-3/2-mandatory/3-space-colonies.js
+++ b/week-3/2-mandatory/3-space-colonies.js
@@ -8,7 +8,8 @@
   NOTE: don't include any element that is not a "family".
 */
 
-function colonisers() {
+function colonisers(names) {
+  return names.filter(element => element.charAt(0)==="A" && element.includes("family"))
 
 }
 
diff --git a/week-3/2-mandatory/4-eligible-students.js b/week-3/2-mandatory/4-eligible-students.js
index 6424b01..6e56bbe 100644
--- a/week-3/2-mandatory/4-eligible-students.js
+++ b/week-3/2-mandatory/4-eligible-students.js
@@ -7,9 +7,17 @@
   - Returns an array containing only the names of the who have attended AT LEAST 8 classes
 */
 
-function eligibleStudents() {
+function eligibleStudents(arr) {
+  let newArr=[]
+  for(let i=0;i<arr.length;i++){
+    if(arr[i][1]>=8){
+        newArr.push(arr[i][0])
+      }
+    }
+    return newArr
+  }
+
 
-}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
diff --git a/week-3/2-mandatory/6-lane-names.js b/week-3/2-mandatory/6-lane-names.js
index eddfe44..e8f431e 100644
--- a/week-3/2-mandatory/6-lane-names.js
+++ b/week-3/2-mandatory/6-lane-names.js
@@ -4,7 +4,8 @@
   Write a function that will return all street names which contain 'Lane' in their name.
 */
 
-function getLanes() {
+function getLanes(lane) {
+    return lane.filter(element => element.includes("Lane"))
 
 }
 
diff --git a/week-3/2-mandatory/7-password-validator.js b/week-3/2-mandatory/7-password-validator.js
index 57b3d53..6908d21 100644
--- a/week-3/2-mandatory/7-password-validator.js
+++ b/week-3/2-mandatory/7-password-validator.js
@@ -21,49 +21,65 @@ Expected Result:
 PasswordValidationResult=  [false, false, false, false, true]
 
 */
+function validatePasswords(psw) {
+  var pswRegex = new RegExp(
+    "^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!.#$%])(?=.{5,})"
+  );
+  var resultArr = [];
+  //let isFirstTime = true;
+  for (let i = 0; i < psw.length; i++) {
+    if (i === psw.indexOf(psw[i]) && pswRegex.test(psw[i])) {
+      //console.log(psw[i])
+      //console.log(psw[i+i])
+      resultArr.push(true);
+    } else {
+      //console.log(psw[i])
+      resultArr.push(false);
+    }
+  }
+  console.log(resultArr);
+  return resultArr;
+}
 
-function validatePasswords(passwords) {
+// function validatePasswords(passwords) {
+//   passwords.every(pswValidator)
 
-}
+// }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
-const passwords1 = ["Se%5", "TktE.TJTU", "384#HsHF", "dvyyeyy!5", "tryT3729"]
-const passwords2 = ["StUFf27%", "Pl3nty!", "Jai33", "shajsaUA**&&", "Pl3nty!"]
+const passwords1 = ["Se%5", "TktE.TJTU", "384#HsHF", "dvyyeyy!5", "tryT3729"];
+const passwords2 = ["StUFf27%", "Pl3nty!", "Jai33", "shajsaUA**&&", "Pl3nty!"];
 
 function arraysEqual(a, b) {
-    if (a === b) return true;
-    if (a == null || b == null) return false;
-    if (a.length != b.length) return false;
-  
-    for (let i = 0; i < a.length; ++i) {
-      if (a[i] !== b[i]) return false;
-    }
-  
-    return true;
+  if (a === b) return true;
+  if (a == null || b == null) return false;
+  if (a.length != b.length) return false;
+
+  for (let i = 0; i < a.length; ++i) {
+    if (a[i] !== b[i]) return false;
+  }
+
+  return true;
 }
 
 function test(test_name, expr) {
-    let status;
-    if (expr) {
-      status = "PASSED";
-    } else {
-      status = "FAILED";
-    }
-  
-    console.log(`${test_name}: ${status}`);
+  let status;
+  if (expr) {
+    status = "PASSED";
+  } else {
+    status = "FAILED";
+  }
+
+  console.log(`${test_name}: ${status}`);
 }
 
 test(
-   "validatePasswords function works - case 1",
-   arraysEqual(
-      validatePasswords(passwords1), [false, false, true, false, false]
-   )
- );
-
- test(
-   "validatePasswords function works - case 2",
-   arraysEqual(
-      validatePasswords(passwords2), [true, true, false, false, false]
-   )
- );
+  "validatePasswords function works - case 1",
+  arraysEqual(validatePasswords(passwords1), [false, false, true, false, false])
+);
+
+test(
+  "validatePasswords function works - case 2",
+  arraysEqual(validatePasswords(passwords2), [true, true, false, false, false])
+);