Answer:
C.
Step-by-step explanation:
6≤x<21
Add 16.7m 4 times that should be the correct answer if not sorry
We can find that the formula is:

We are told that the cannonball reaches its maximum height at t = 4.5 seconds. To find the maximum height, let's just plug this into the formula:

The height is 324 feet. We're done!
x = -8
Step-by-step explanation:
Step 1: Subtract 1 from both sides

Divide both sides of the equation by -10

Answer:
Step-by-step explanation: subtract 160 and 125 and you’ll get 35