Rapid city is having its annual citywide celebration. The city wants to rent a bumper-car ride. The pieces used to…

Rapid city is having its annual citywide celebration. The city wants to rent a bumper-car ride. The pieces used to make the floor are 4 foot -by 5 foot rectangles. The ride covers a rectangular space that is 40 feet by 120 feet. how many rectangular floor pieces are needed?