I think after the 9th bounce it will lose 90% of its max height
times 40 by 0.9 which will give you 36
then take 36 away from 40 leaving you with 4.
answer = 4ft
If sqrt x = 9 then x = 9*9 = 81
Answer is between 80 and 90.
The answer is b. x=77, y=63
