REVIEW QUESTIONS MyLab Finance Solutions 5-10 What is the difference between an ordinary annuity and an annuity due? Which is more valuable? Why? 5-11 What are the most efficient ways to calculate the present value of an ordinary annuity? 5-12 How can the formula for the future value of an annuity be modified to find the future value of an annuity due? 5-13 How can the formula for the present value of an ordinary annuity be modified to find the present value of an annuity due? 5-14 What is a perpetuity? Why is the present value of a perpetuity equal to the annual cash payment divided by the interest rate? Why doesn't this chapter provide an equation showing you how to calculate the future value of a perpetuity