Consider a loan of $2.5 million that is paid quarterly over a period of 10 years. Calculate the dollar amount of interest and loan principal repaid corresponding to each payment if the interest rate is 9% per year, compounded quarterly. What is the 5th Quarter Interest and also the 5th Quarter Principal Repayment respectively.

Suppose you want to provide for the college education of your son. He will begin college six years from now, and you wish to have $15,000 available for him at the beginning of each year in college. How much must be invested today at a 12 percent annual rate of return in order to provide the 4-year, $15,000 annuity for your son?