Will mark as brainliest! Ishi walked a total of 2 1/2 miles on a treadmill. He walked at a constant rate of 4 miles per hour. Which expression shows how long, in minutes, Ishi walked on the treadmill? A. 2.5 miles divided by 4 miles/hour divided by 60 minutes/ hour B. 2.5 miles divided by 4 miles/ hour x 60 minutes / hour C. 2.5 miles x 60 minutes/ hour D. 2.5 miles x 4 miles/hour divided by 60 minutes/hour