diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java b/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
index 1402353..8aedef9 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
@@ -2,18 +2,39 @@
 
 public class BasicUtilities {
     public Boolean isGreaterThan5(Integer value) {
-        return null;
+        if (value >= 5) {
+            return true;
+        } else {
+            return false;
+        }
     }
 
+
     public Boolean isLessThan7(Integer value) {
-        return null;
+        if (value <= 7) {
+            return true;
+        } else {
+            return false;
+        }
     }
 
     public Boolean isBetween5And7(Integer valueToEvaluate) {
-        return null;
+        if ((valueToEvaluate % 5 == 0 || valueToEvaluate % 6 == 0 || valueToEvaluate % 7 == 0) && (valueToEvaluate != 0)) {
+            return true;
+
+        } else {
+            return false;
+        }
     }
 
+
     public Boolean startsWith(String string, Character character) {
-        return null;
+        char[] result = string.toCharArray();
+        for (int i = 0; i < string.length(); i++)
+            if (result[0] == character || result[0] == character.toUpperCase(character))
+                return true;
+        return false;
     }
 }
+
+
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java b/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
index a360000..e16677b 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
@@ -1,19 +1,38 @@
 package com.zipcodewilmington.assessment2.part1;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.IntStream;
+
 public class IntegerArrayUtilities {
     public Boolean hasEvenLength(Integer[] array) {
-        return null;
+        if (array.length % 2 == 0)
+            return true;
+
+        return false;
     }
 
+
     public Integer[] range(int start, int stop) {
-        return null;
-    }
+        List<Integer> result = new ArrayList<>();
+        for (int i = start; i <= stop; i++) {
+            result.add(i);
+        }
 
-    public Integer getSumOfFirstTwo(Integer[] array) {
-        return null;
-    }
+        Integer[] finalResult = new Integer[result.size()];
+        for (int i = 0; i < result.size(); i++) {
+            finalResult[i] = result.get(i);
+        }
+        return finalResult;
 
-    public Integer getProductOfFirstTwo(Integer[] array) {
-        return null;
-    }
 }
+
+        public Integer getSumOfFirstTwo ( Integer[]array){
+            return array[0] + array[1];
+        }
+
+        public Integer getProductOfFirstTwo ( Integer[]array){
+            return array[array.length - 1] * array[array.length - 2];
+        }
+    }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java b/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
index 63f210e..a48e762 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
@@ -1,18 +1,22 @@
 package com.zipcodewilmington.assessment2.part1;
 
 public class WuTangConcatenator {
+    private Integer input;
+    
+
     public WuTangConcatenator(Integer input) {
+        this.input = input;
     }
 
     public Boolean isWu() {
-        return null;
+        return input % 3 == 0;
     }
 
     public Boolean isTang() {
-        return null;
+        return input % 5 == 0;
     }
 
     public Boolean isWuTang() {
-        return null;
+        return isWu() && isTang();
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java b/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
index de2f799..f67708f 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
@@ -2,18 +2,52 @@
 
 public class ArrayUtility {
     public Integer[] merge(Integer[] array1, Integer[] array2) {
-        return null;
+        int lengthOne = array1.length;
+        int lengthTwo = array2.length;
+        Integer[] result = new Integer[lengthOne + lengthTwo];
+
+        System.arraycopy(array1, 0, result, 0, lengthOne);
+        System.arraycopy(array2, 0, result, lengthOne, lengthTwo);
+        return result;
     }
 
+
     public Integer[] rotate(Integer[] array, Integer index) {
-        return null;
+        Integer[] result = new Integer[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[( i + array.length - index ) % array.length] = array[i];
+        }
+        return result;
     }
 
+
     public Integer countOccurrence(Integer[] array1, Integer[] array2, Integer valueToEvaluate) {
-        return null;
+        Integer counter = 0;
+        for (int i = 0; i < array1.length && i < array2.length; i++)
+            if (valueToEvaluate == array1[i] || valueToEvaluate == array2[i])
+                counter++;
+
+        return counter;
+
     }
 
     public Integer mostCommon(Integer[] array) {
-        return null;
+        Integer count = 1, tempCount;
+        Integer mostCommon = array[0];
+        Integer temp = 0;
+        for (int i = 0; i < array.length - 1; i++) {
+            temp = array[i];
+            tempCount = 0;
+            for (int j = 1; j < array.length; j++)
+                if (temp == array[j])
+                    tempCount++;
+
+            if (tempCount > count) {
+                mostCommon = temp;
+                count = tempCount;
+            }
+        }
+        return mostCommon;
     }
 }
+
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
index e978685..b5ecab2 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
@@ -1,29 +1,36 @@
 package com.zipcodewilmington.assessment2.part2;
-
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
 
+
 public class ListUtility {
+    private List<Integer> list = new ArrayList<>();
     public Boolean add(int i) {
-        return null;
+        return list.add(i);
     }
 
     public Integer size() {
-        return null;
+        return list.size();
     }
 
     public List<Integer> getUnique() {
-        return null;
+        return new ArrayList<>(new HashSet<>(list));
     }
 
     public String join() {
-        return null;
+        String result = list.toString();
+        return result.substring(1, result.length()-1);
     }
 
+
     public Integer mostCommon() {
-        return null;
+        ArrayUtility arrayUtility = new ArrayUtility();
+        return arrayUtility.mostCommon(list.toArray(new Integer[0]));
     }
 
     public Boolean contains(Integer valueToAdd) {
-        return null;
+        return list.contains(valueToAdd);
     }
 }