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A Super Bounce Ball is dropped from a height of 64 ft. With each bounce, the ball reaches a height that is three-fourths the height of the previous bounce.
After how many bounces will the ball bounce up to a height less than 9 in.?
a.3
b.5
c.4
d.6

Question

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A Super Bounce Ball is dropped from a height of 64 ft. With each bounce, the ball reaches a height that is three-fourths the height of the previous bounce. 
After how many bounces will the ball bounce up to a height less than 9 in.?
a.3
b.5
c.4
d.6

anonymous · Answer

one bound $64\times \frac{3}{4}$

anonymous · Answer

two bounces $64\times (\frac{3}{4})^2$

anonymous · Answer

etc