Micah started an exercise program. The first day, he walked 20 minutes. Each day after that, he added 4 minutes to his walking time the previous day. Which expression shows how far Micah walked n days after he started? A 4n20 B 20n4 C 4(n20) D 20(n4)

Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next