A rubber ball is dropped onto a hard surface from a height of 9 feet, and it bounces up and down. At each bounce it rises to 80% of the height from which it fell.
a. Find a formula for h(n), the height in inches reached by the ball on bounce n.
h(n) =

b. How high will the ball bounce on the 10 bounce?


c. How many bounces before the ball rises no higher than an inch?