A supeball is thrown off of a 200 foot building. Each time is hits the ground, it rebounds 75% of its height. What is its rebound after its 4th bounce?

first rebound = .75(200)

2nd rebound = .75(.75(200)) =.75^2 (200)
3rd = .75^3 (200)
4th = .75^4 (200 = appr 63.28 ft