KatsukiBakugo1420 KatsukiBakugo1420 26-03-2021 Health contestada John is 13 years old. He want to exercise between 50 and 85 percent of his maximum heart rate. What is the range that he should stay between? (Max heart rate formula is 220-age) A) 100-125 B) 90-160 C) 103-175 D) 80-150