aJosemismimc aJosemismimc 11-12-2016 Mathematics contestada A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change? A 75 feet per hour B 200 feet per hour C 116 feet per hour D 100 feet per hour