diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..e1b1b4a
Binary files /dev/null and b/.DS_Store differ
diff --git a/TestAssessment/TestViewController.m b/TestAssessment/TestViewController.m
index 1f111c4..26b9b8f 100644
--- a/TestAssessment/TestViewController.m
+++ b/TestAssessment/TestViewController.m
@@ -19,39 +19,47 @@ @implementation TestViewController
     This method should return any negative NSInteger
     (hint: cannot be 0)
  */
-- (void)shouldReturnANegativeNSInteger {
-    
+- (NSInteger)shouldReturnANegativeNSInteger {
+    return  -23;
 }
 
 /*
     This method should return any positive CGFloat
     (hint: cannot be 0)
  */
-- (void)shouldReturnAPositiveCGFloat {
-    
+- (CGFloat)shouldReturnAPositiveCGFloat {
+    return 2.3;
 }
 
 /*
     This method should return a truthy boolean
     Truthy: Something which evaluates to TRUE.
  */
-- (void)shouldReturnAPositiveBool {
-    
+- (BOOL)shouldReturnAPositiveBool {
+    return YES;
 }
 
 /*
     This method should return any single char from c - l
  */
-- (void)shouldReturnACharCtoL {
+- (char)shouldReturnACharCtoL {
     
+    return 'c';
 }
 
 /*
-    This method should return the product of all numbers from
+    This method should return the sum of all numbers from
     0 - 1000 using a loop (eg. 1 + 2 + 3 + ... + 998 + 999)
  */
 - (NSInteger)shouldReturnSumOf0To1000 {
-    return 0;
+    
+    NSInteger result = 0;
+    
+    for (NSInteger i = 0; i < 1000; i++) {
+        result += i;
+    }
+    
+    return result;
 }
 
 /*
@@ -60,7 +68,14 @@ Given a c array (int[]) and a count, return the average of the numbers within th
  */
 - (NSInteger)shouldReturnAverageOfArrayValues :(int *)arr
                                  withSize:(int)count {
-    return 0;
+    NSInteger sum = 0;
+    NSInteger avg;
+    for (NSInteger i = 0; i < count; i++) {
+        sum += arr[i];
+    }
+    avg = sum/count;
+    
+    return avg;
 }
 
 /*
@@ -70,7 +85,13 @@ Provided a C string (array of chars), return the character
     (hint: assume there will be a char after g)
  */
 - (char)shouldReturnCharAfterG:(char *)str {
-    return '\0';
+    char letterAfterG = '\0';
+    for (NSInteger i = 0; i <= strlen(str); i++) {
+        if (str[i] == 'g') {
+            letterAfterG = str [i+1];
+        }
+    }
+    return letterAfterG;
 }
 
 /*
@@ -79,7 +100,8 @@ - (char)shouldReturnCharAfterG:(char *)str {
  */
 - (NSInteger)productOfAnInteger:(NSInteger)aNumber
               andAnotherInteger:(NSInteger)bNumber {
-    return 0.0;
+    NSInteger product = aNumber * bNumber;
+    return product;
 }
 
 
@@ -87,14 +109,22 @@ - (NSInteger)productOfAnInteger:(NSInteger)aNumber
     This method should return a YES if aNumber is Even
  */
 - (BOOL)isEven:(NSInteger)aNumber {
+    if (aNumber %2 == 0) {
+        return YES;
+    } else {
     return NO;
+    }
 }
 
 /*
     This method should return YES if aNumber is a multiple of 10
  */
 - (BOOL)isMultipleOfTen:(NSInteger)aNumber {
+    if (aNumber %10 == 0) {
+        return YES;
+    } else {
     return NO;
+    }
 }
 
 /*
@@ -102,7 +132,11 @@ - (BOOL)isMultipleOfTen:(NSInteger)aNumber {
  */
 - (BOOL)returnYesIfThisNumberIsOdd:(NSInteger)aNumber
                andThisNumberIsEven:(NSInteger)bNumber {
+    if (aNumber %2 != 0 && bNumber %2 ==0) {
+        return YES;
+    } else {
     return NO;
+    }
 }
 
 /*
@@ -110,13 +144,15 @@ - (BOOL)returnYesIfThisNumberIsOdd:(NSInteger)aNumber
     (hint: command + click on the class name to see what methods are available)
  */
 - (NSString *)shouldReturnCarModel:(Car *)car {
-    return @"";
+    
+    return [car model];
 }
 
 /*
     This method should change the model of the car to "Firebird"
  */
 - (void)changeCarModelToFirebird:(Car *)car {
+    return  [car setModel:@"Firebird"];
 }
 
 /*
@@ -124,7 +160,8 @@ - (void)changeCarModelToFirebird:(Car *)car {
     the car's current fuel level
  */
 - (CGFloat)tellCarToDrive4MilesAndReturnFuelLevel:(Car *)car {
-    return 0.0;
+    [car drive:4];
+    return [car fuelLevel];
 }
 
 /*
@@ -135,11 +172,20 @@ - (CGFloat)tellCarToDrive4MilesAndReturnFuelLevel:(Car *)car {
     4) Return the car
  */
 - (Car *)createAndReturnANewCar {
-    return [[Car alloc] init];
+    Car *jay = [[Car alloc] init];
+    [jay setModel:@"Honda Pilot"];
+    [jay drive:6];
+    return jay;
 }
 
 - (int)returnSumOfAllItemsGreaterThan100:(int *)arr withSize:(int)size {
-    return 0;
+    int result = 0;
+    for (int i = 0 ; i < size; i++) {
+        if (arr[i] > 100) {
+            result += arr[i];
+        }
+    }
+    return result;
 }
 
 @end