Max is painting a fence.The table shows the number of square feet he painted after various numbers of minutes. What is the rate of change?Amount of Fence Max PaintedMinutesSquare Feet Painted13.527310.5414517.5

The amount painted increases by 3.5 square feet each time the minutes increase by 1. For example, from 7 to 10.5 square feet is an increase of 3.5 square feet in 1 minute. So the rate of change is 3.5 square feet per minute, which is choice D.

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