Answer:
D . 9 .1/13
Step-by-step explanation:
h(t) = 80t - 16t²
Ground level is h(0) = 0
We want to solve for t:
h(t)= 0
80t - 16t² = 0
16t(5 - t) = 0
t = 0 or t = 5
Answer: 5 seconds
Answer:C
He began with 14 please mark brainliest
13-6 equals 7
7 times 2 equals 14