If it costs 50 cents ($0.50) per square foot to paint ceiling, calculate the total cost to paint the following: 1 room 21`X 25`: 1 room 18`X 18`: 3 rooms 12`X 15`: Gargage measures 23` X 28`.

If it costs 50 cents ($0.50) per square foot to paint ceiling, calculate the total cost to paint the following: 1 room 21`X 25`: 1 room 18`X 18`: 3 rooms 12`X 15`: Gargage measures 23` X 28`.