diff --git a/csharp-fundamentals-methods.Main/Core.cs b/csharp-fundamentals-methods.Main/Core.cs
index a69b542..d650763 100644
--- a/csharp-fundamentals-methods.Main/Core.cs
+++ b/csharp-fundamentals-methods.Main/Core.cs
@@ -27,31 +27,38 @@ logic. See the example below and take some time to break it down and understand
         //TODO: 1. Create a method that accepts a name and returns a greeting      
         public string greet(string name)
         {
-            throw new NotImplementedException();
+           
+            return $"Hello {name}!";
         }
 
+    
+
         //TODO: 2. Increment a number
         /*
             Complete this method so that it increases the number given by 1 and returns the result
          */
         public int increment(int number)
-        {
-            throw new NotImplementedException();
-        }
+    {
+           
+        return number + 1;
+    }
 
-        //TODO: 3. Construct a friendly greeting
-        /*
-            Complete this method so that it accepts a name as an input and outputs a friendly greeting
-            with a smiley face. Example input and output:
-            Input  | Output
-            -------|-------
-            Nathan | Hi, Nathan :)
-            Edward | Hi, Edward :)
-         */
-        public string happilyGreet(string name)
+    //TODO: 3. Construct a friendly greeting
+    /*
+        Complete this method so that it accepts a name as an input and outputs a friendly greeting
+        with a smiley face. Example input and output:
+        Input  | Output
+        -------|-------
+        Nathan | Hi, Nathan :)
+        Edward | Hi, Edward :)
+     */
+    public string happilyGreet(string name)
         {
-            throw new NotImplementedException();
-        }
+          
+        return $"Hi, {name} :)";
+
+
+    }
 
 
 
@@ -70,9 +77,13 @@ Create a method named constructNumberArray that accepts two whole numbers named
         public int[] constructNumberArray(int lower, int upper)
         {
 
-            int[] resultArray = { };
+        int[] resultArray = new int[upper - lower + 1];
+        for (int i = lower, j = 0; i <= upper; i++, j++)
+        {
+            resultArray[j] = i;
+        }
 
-            return resultArray;
+        return resultArray;
 
         }
 
@@ -92,7 +103,13 @@ The number of exclamation marks appended must be determined by the number provid
 
         public string shout(string phrase, int number)
         {
-            return $"";
+            string shouted = phrase.ToUpper();
+
+            shouted += new string('!', number);
+
+            return shouted;
+        
+            
         }
 
 
diff --git a/csharp-fundamentals-methods.Main/Extension.cs b/csharp-fundamentals-methods.Main/Extension.cs
index a4461e2..0da1d9a 100644
--- a/csharp-fundamentals-methods.Main/Extension.cs
+++ b/csharp-fundamentals-methods.Main/Extension.cs
@@ -17,9 +17,20 @@ public class Extension
         "The cake is still baking!" if there are any remaining minutes left,
         and "The timer finished ages ago!" if the remaining minutes is a negative number
      */
-        public double timerStatus(int v)
+        public string timerStatus(int v)
         {
-            throw new NotImplementedException();
+            if (v == 0)
+            {
+                return "The cake is ready!";
+            }
+            else if (v > 0)
+            {
+                return "The cake is still baking!";
+            }
+            else
+            {
+                return "The timer finished ages ago!";
+            }
         }
 
 
@@ -35,7 +46,14 @@ provided and the prep time per ingredient.
 
         public double estimatePrepTime(string[] strings, int v)
         {
-            throw new NotImplementedException();
+            if (v == 0)
+            {
+                v = 2;
+            }
+
+            int time = strings.Length * v;
+
+            return time;
         }
 
 
@@ -51,7 +69,12 @@ public double estimatePrepTime(string[] strings, int v)
 
         public double calculateGramsOfSugar(string[] strings, int v)
         {
-            throw new NotImplementedException();
+            string Sugar = "sugar";
+            bool hasSugar = strings.Contains(Sugar);
+
+            double SugarPerLayer = hasSugar ? 100 : 0;
+            double totalSugar = SugarPerLayer * v;
+            return totalSugar;
         }