Answer with Step-by-step explanation:
We are given that height of projectile after t seconds is given by

a.h(t)=144 ft






t-3=0
t=3
After 3 s, the height of the project will be 144 feet in the air.
b.h(t)=0




At t=0, the initial position of projectile
At t=6 s , the projectile will hit the ground.
Answer:
40 minutes
Step-by-step explanation:
B. 4(4a+5)
4 would multiply all what’s in the bracket
16a +20
64 divided by 2 =32 gigabytes
I hope this helps you.