Page 1: a. Car A’s average speed at 120 miles per 2 hours, or 60 miles per hour. b. Car B’s average speed at 67.5 miles per 1.5 hours, or 45 miles per hour c. The distance traveled in a specific amount of time. d. Average speed of the car in miles per hour. e. Car A is traveling faster because it has a greater slope. Car A reaches the same distance as Car B, in less time.