A tennis ball is dropped from a height of 20 feet . After the ball hits the floor , it rebounds to 85% of its previous height . Write down a general formula for this sequence.

Answer:
Height is 15 feet
It rebounds 85% of its original height
.85*15=12.75 feet on 1st bounce
12.75*.85=10.8375 feet on the 2nd bounce
10.8375*.85=9.211875 feet on 3rd bounce
So your answer is 9.2 feet high.
Step-by-step explanation: