6. Mike is considering investing $18,500 in an investment that will have a maturity value of $32,500 in 8 years. If the interest is compounded monthly, what is the annual rate of return earned on the investment? a. 4.29% 2. Dwayne in v s 54,700 in a savings account at the beginning of each of the next twelve years. I his Opportunity cost rate is 7 percent compounded annually, how much will this investment be worth after the Fast annuity payment is made? Use the equation method to calculate the worth of the investment (Round your answer to two decimal places.)