Which equation could be used to find m∠e in △efg? m∠e = cos–1 m∠e = cos–1 m∠e = tan–1 m∠e = tan–1.

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?