PSAT10 P1 · 第 11 题

A ball is dropped from an initial height of 22 feet and bounces off the ground repeatedly. The function ℎ estimates that the maximum height reached after each time the ball hits the ground is 85% of the maximum height reached after the previous time the ball hit the ground. Which equation defines ℎ, where ℎ(n) is the estimated maximum height of the ball after it has hit the ground n times and n is a whole number greater than 1 and less than 10?