A squirrel ran 9 miles in 1 hour. Which expression can be used to determine its speed in miles per hour?

Speed is calculated by dividing the distance traveled by the time taken. Here, the squirrel traveled 9 miles in 1 hour, so use 9 miles ÷ 1 hour. This gives a speed of 9 miles per hour, so the correct choice is “9 miles ÷ 1 hour.”

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