diff --git a/src/main/java/com/booleanuk/core/Exercise.java b/src/main/java/com/booleanuk/core/Exercise.java
index 7ac3cfb..0c371af 100644
--- a/src/main/java/com/booleanuk/core/Exercise.java
+++ b/src/main/java/com/booleanuk/core/Exercise.java
@@ -2,6 +2,8 @@
 
 import com.booleanuk.helpers.ExerciseBase;
 
+import java.util.ArrayList;
+
 public class Exercise extends ExerciseBase {
     /*
         A method is a function, a single piece of logic that can run. In Java, a class is a convenient
@@ -35,7 +37,7 @@ public String greet(String name) {
         Complete this method so that it increases the number given by 1 and returns the result
      */
     public int increment(int number) {
-        return 0;
+        return number + 1;
     }
 
     /*
@@ -48,8 +50,8 @@ public int increment(int number) {
         Nathan | Hi, Nathan :)
         Edward | Hi, Edward :)
      */
-    public String happilyGreet() {
-        return "Not implemented yet";
+    public String happilyGreet(String name) {
+        return "Hi, " + name + " :)";
     }
 
     /*
@@ -65,7 +67,13 @@ public String happilyGreet() {
         -1, 1  | [-1,0,1]
      */
 
-
+    public int[] constructNumberArray(int lower, int upper) {
+        int[] array = new int[(upper - lower) +1];
+        for (int i =0 ;i <= (upper - lower); i++) {
+            array[i] = lower + i;
+        }
+        return array;
+    }
 
 
     /*
@@ -80,7 +88,14 @@ The method must return the same string in upper case with exclamation marks (!)
         disaster, 5 | DISASTER!!!!!
         error, 10   | ERROR!!!!!!!!!!
      */
-
+    public  String shout(String input, int num) {
+        StringBuilder sb = new StringBuilder();
+        sb.append( input.toUpperCase());
+        for (int i = 0; i < num; i++) {
+            sb.append( "!");
+        }
+        return  sb.toString();
+    }
 
 
 
diff --git a/src/main/java/com/booleanuk/extension/Extension.java b/src/main/java/com/booleanuk/extension/Extension.java
index f9de7dd..55379a8 100644
--- a/src/main/java/com/booleanuk/extension/Extension.java
+++ b/src/main/java/com/booleanuk/extension/Extension.java
@@ -8,7 +8,7 @@ public class Extension extends ExtensionBase {
     /*
         5. Create a method named bakingTime that returns the number 50
      */
-
+    public int bakingTime() {return 50;}
 
 
 
@@ -20,7 +20,9 @@ public class Extension extends ExtensionBase {
         and the result of calling the bakingTime method
      */
 
-
+    public int remainingBakeTime(int timeInOven){
+        return bakingTime() - timeInOven;
+    }
 
 
     /*
@@ -30,7 +32,9 @@ public class Extension extends ExtensionBase {
         It must return how many minutes it will take to prepare the cake based on
         each layer taking 3 minutes to prepare
      */
-
+    public int calculatePrepTime(int layers) {
+        return layers * 3;
+    }
 
 
 
@@ -44,7 +48,9 @@ public class Extension extends ExtensionBase {
         in the oven. Use your calculatePrepTime method in the calculation
      */
 
-
+    public int totalTimeSpent(int layers, int timeAlreadyInOven) {
+        return calculatePrepTime(layers) + timeAlreadyInOven;
+    }
 
 
 }