Answer:
(a) 
(b) 
(c) 
Step-by-step explanation:
We have given velocity as function of t 
Acceleration is equation rate if change of velocity with respect to time
So 
(a) Acceleration at t = 5 sec

(b) Acceleration at t = 10 sec

(c) Acceleration at t = 20 sec

1. how much to tip
2. how much interest is needed for a loan
3. figuring out how much sales tax
Answer:
Thank you have a nice day:)
I feel like the question is missing some more statistics, please provide more information.
ex.
how much would each person use on a basis?
Answer:y=12
Step-by-step explanation: