The speed of a conveyor belt at a rock quarry must be between 2.7 and 3 miles per hour. During one shift, the supervisor calculates the speed of the belt as 240 feet per minute. What action should the foreman take, and why?

Convert feet per minute to miles per hour: 240 × 60 = 14,400 feet per hour, and 14,400 ÷ 5,280 ≈ 2.73 miles per hour. That is a little more than 2.7 and remains below 3, so the belt is within the allowed range. No action is needed, as choice A states.

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