Answer:
4 seconds
Step-by-step explanation:
On the ground, height = 0
-12x(x - 4) = 0
x = 0, 4
It was on the ground initially at x = 0, and again at x = 4
Answer: 88 - 180 =? ÷2
21 Feet
7 yards is equal to 21 feet
210
A. 147