diff --git a/src/functions-and-arrays.js b/src/functions-and-arrays.js
index ce8695c..06efda7 100644
--- a/src/functions-and-arrays.js
+++ b/src/functions-and-arrays.js
@@ -1,5 +1,21 @@
 // Iteration 1 | Find the Maximum
-function maxOfTwoNumbers() {}
+function maxOfTwoNumbers(num1,num2) {
+  
+    if(num1>num2)
+        {
+            return num1;
+        }
+
+        else if(num1<num2)
+            {
+                return num2;
+            }
+
+            else
+                {
+                    return num1 ;
+                }
+}
 
 
 
@@ -7,7 +23,25 @@ function maxOfTwoNumbers() {}
 // Iteration 2 | Find the Longest Word
 const words = ["mystery", "brother", "aviator", "crocodile", "pearl", "orchard", "crackpot"];
 
-function findLongestWord() {}
+function findLongestWord(words) {
+    let theOne=0
+    let lenGth=0;
+    if(words.length===0)
+        {
+            return null;
+        }
+        else
+            {
+               for(let i=0;i<words.length;i++)
+        {
+           if(lenGth<words[i].length){
+              lenGth=words[i].length;
+              theOne=i
+            }
+        }
+            return words[theOne];
+            }
+}
 
 
 
@@ -15,7 +49,22 @@ function findLongestWord() {}
 // Iteration 3 | Sum Numbers
 const numbers = [6, 12, 1, 18, 13, 16, 2, 1, 8, 10];
 
-function sumNumbers() {}
+function sumNumbers(sumNumbers) {
+    let sumN=0;
+    if(sumNumbers.length===0)
+        {
+            return 0;
+        }
+    else
+        {
+            for(let i=0;i<sumNumbers.length;i++)
+                {
+                    sumN+=sumNumbers[i];
+                }
+                return sumN;
+        }
+
+}
 
 
 
@@ -23,7 +72,19 @@ function sumNumbers() {}
 // Iteration 4 | Numbers Average
 const numbers2 = [2, 6, 9, 10, 7, 4, 1, 9];
 
-function averageNumbers() {}
+function averageNumbers(numbers2) 
+
+{
+    let averageN;
+    if(numbers2.length===0){
+        return 0;
+    }
+    else
+        {
+         averageN=sumNumbers(numbers2)/numbers2.length;
+         return averageN;
+        }
+}
 
 
 
@@ -31,4 +92,18 @@ function averageNumbers() {}
 // Iteration 5 | Find Elements
 const words2 = ["machine", "subset", "trouble", "starting", "matter", "eating", "truth", "disobedience"];
 
-function doesWordExist() {}
+function doesWordExist(words2,targetWord) 
+{
+    if(words2.length===0){
+        
+        return null;
+    }
+    else{
+        if(words2.includes(targetWord)){
+            return true;
+        }
+        else{
+            return words.includes(targetWord)
+        }
+    }
+}