Find the interest rate required for an investment of $7000 to grow to $9500 in 8 years if interest is compounded as follows. a. Annually b. Quarterly a. Write an equation which relates the investment of $7000, the desired value of $9500, and the time period of 8 years in terms of r, the yearly interest rate (written as a decimal), and m, the number of compounding periods per year.