Interest Compounded Annually. When P dollars is invested at interest rate i, compounded annually, for t years,

Question:

Interest Compounded Annually. When P dollars is invested at interest rate i, compounded annually, for t years, the investment grows to A dollars, where
A = P(1 + i)t.
Trevor's parents deposit $8000 in a savings account when Trevor is 16 years old. The principal plus interest is to be used for a truck when Trevor is 18 years old. Find the interest rate i if the $8000 grows to $9039.75 in 2 years?