If you borrow $25,000 from a local finance company and you are required to pay $4,424.50 per year for 10 years, what is the annual interest rate on the loan?

Use this formula:

A = P (1+rt),

A is the final investment amount (4424.50x10)

P is the principal amount (25,000)

r is the rate of interest (annual)

t is the time period (10)

If A = P (1+rt),

then (1+rt) = A/P.

(1+r (10) = (44,245) / 25,000

10r=1.7698-1

r=.7698/10

r=.07698 or 7.698%