Question

medal and follow!!!!!!!!!

Answer 1

Zach borrowed four thousand dollars from his grandfather to buy a used car so he could travel to and from work. After working for 3 years, he has saved five thousand four hundred forty dollars to pay back to his grandfather. At what interest rate did Zach borrow the money?
nine percent
twelve percent
twenty-five percent
twenty-six percent

Answer 2

alright
so initial price is 4000
he worked for 3 years and gave his grandma 5440
which is 1440 more
so per year you money is increased by 1440/3 = 480

Answer 3

now yearly interest is 480 $
so find out
how many % is 480 $ of 4000

Answer 4

(480*100)/4000 = 12% ^^ your answer

Answer 5

I think it is B

Answer 6

Keisha's parents want to save twenty-five thousand dollars in her college savings account over the next twenty years. They have ten thousand dollars to use as an initial deposit. What simple annual interest rate do they need to meet their goal? Round your answer to the nearest tenth.
four point five percent
five percent
seven point five percent
twelve point five percent

Answer 7

@aajugdar