The highway has a maximum speed limit of 55 mph. Which vehicles are safelyobeying this speed limit? Check all that apply.

Find each vehicle’s average speed by dividing distance by time. The limousine travels 318 ÷ 6 = 53 mph, the sports car 216 ÷ 4 = 54 mph, and the school bus 162 ÷ 3 = 54 mph; all are at or below 55 mph. The ambulance travels 75 mph and the train 91 mph, so they exceed the limit.

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