
Using the quadratic formula we get

Therefore the tennis ball is at least 15 feet above the ground from 0.5 seconds to 2.04 seconds
Answer:
B is the solution
Step-by-step explanation:
-6.53 is the furthest from 0
-6 1/4 is closer to 0
6.57 is positive and more than 0
6 3/4 is also positive and more than 6.57
0.3% is the answer because the decimal is over one meaning the percent is over 100