Tara is buying a new car. She can get a truck, a convertible, a van, a station wagon, or a hatchback. The outside paint comes in purple, red, blue, or black. The seats can be covered with black vinyl, gray fabric, white leather, blue fabric, or brown leather. Given these choices, how many different combinations does Tara have to choose from? All I know is that there's 5 vehicles, 4 outside colors and 5 seat colors. ​