Zachary101234 Zachary101234 01-12-2016 Mathematics contestada At 9:00 A.M. It was -8º F. At 3:00 P.M. the temperature was 10º F. Which expression shows how to find the average increase per hour in temperature? [10−(-8)]÷6 [10+(-8)]÷6 6÷(−8+10) 6÷[−8−(−10)]