Answer:
f^-1 (x) = -21x + 7 is your answer
The answer is 90 i think
explain: none
The money he will save in a year is 6,300.
<u>Step-by-step explanation</u>:
Savings for 1 month = 525
Savings for 1 year = money saved for 1 month 12 months
⇒ 525 12 = 6,300