Levy Witherspoon is the star center of the boys’ varsity basketball team. If he drops the ball, it will bounce back to 8/10 of the height that he dropped it from. Levy reaches overhead and drops the ball from a height of eight feet. How many times will it bounce before it bounces up less than two feet (approximately the height of Levy’s knees)?
Since the rebound is 8/10 of the former height, we can just start multiplying by 0.8.
So after the 7th bounce, the ball fails to reach a height of two feet.