Answer:
2nd degree
Step-by-step explanation:
70.59 is 363.846154% of 19.5.
I believe the answer is 922,944
The expression of the height is

the index "n" is the numbers of times that the ball is down, to n=1 the height is 8 inches, to n=2 the height is 4 inches.
An when n=5, the height is

the anwers is 0.5 inches
Substitute -3 to x
(-3)^2 + 4(-3) + 1
9 - 12 + 1
= -2