diff --git a/src/functions-and-arrays.js b/src/functions-and-arrays.js
index ce8695c..81526b1 100644
--- a/src/functions-and-arrays.js
+++ b/src/functions-and-arrays.js
@@ -1,34 +1,105 @@
 // Iteration 1 | Find the Maximum
-function maxOfTwoNumbers() {}
+let biggestNumber = 0
+
+function maxOfTwoNumbers(firstNumber, secondNumber) {
+
+    if (firstNumber < secondNumber) {
+        biggestNumber = secondNumber
+        return biggestNumber
+    }
+
+    else if (firstNumber > secondNumber){
+        biggestNumber = firstNumber
+        return biggestNumber
+    }
+}
+
+maxOfTwoNumbers(89,56) // test
+
+console.log(maxOfTwoNumbers(89,56)) // test
 
 
 
 
 // Iteration 2 | Find the Longest Word
-const words = ["mystery", "brother", "aviator", "crocodile", "pearl", "orchard", "crackpot"];
+const words = ["mystery", "brother", "antiotebureuiabguiero", "crocodile", "pearl", "orchard", "crackpot"];
 
-function findLongestWord() {}
+let newArr=[" "]
 
+function findLongestWord() {
+    for (i=0 ; i<words.length ; i++) {
+        if (words[i].length > newArr[0].length) {
+          newArr.pop()
+          newArr.push(words[i])
+            }
+               
+    }
+  return newArr
+}
 
+result = findLongestWord(["mystery", "brother", "aviator", "crocodile", "pearl", "orchard", "crackpot"])
 
+console.log(result)
 
 // Iteration 3 | Sum Numbers
 const numbers = [6, 12, 1, 18, 13, 16, 2, 1, 8, 10];
 
-function sumNumbers() {}
+function sumNumbers() {
+let sum = 0
+    for(i=0 ; i<numbers.length ; i++){
+        sum += numbers[i]
+    }
+
+    return sum
+}
 
+let result = sumNumbers(numbers)
+
+console.log(result)
 
 
 
 // Iteration 4 | Numbers Average
-const numbers2 = [2, 6, 9, 10, 7, 4, 1, 9];
+const numbers = [2, 6, 9, 10, 7, 4, 1, 9]
+function sumNumbers() {
+let sum = 0
+    for(i=0 ; i<numbers.length ; i++){
+        sum += numbers[i]
+    }
+
+    return sum
+}
 
-function averageNumbers() {}
+function averageNumbers(myNumber) {
+    let average = sumNumbers(myNumber) / myNumber.length
 
+    return average
+}
 
+let result = averageNumbers(numbers)
+console.log(result)
 
 
 // Iteration 5 | Find Elements
 const words2 = ["machine", "subset", "trouble", "starting", "matter", "eating", "truth", "disobedience"];
 
-function doesWordExist() {}
+function doesWordExist(array, word) {
+  
+  if  (array.length===0)
+        {
+          return null
+       }    
+  
+    for(i=0 ; i<array.length ; i++){
+    
+       if (array.includes(word)===true){
+            return true
+        }
+        else if (array.includes(word)===false)
+           { return false }
+    }
+}
+
+result = doesWordExist(words2, "htehsgsr")
+
+console.log(result)
\ No newline at end of file