7. Write out the formulas, with the numbers filled in, to solve the following problems. You do not have to do the actual calculations. Find the yield-to-maturity of a zero-coupon 10-year bond (par = $1,000) with a price of $622.44. (4 points). Find the present value of an investment that has three payments: $400 in two years, $500 in four years and $600 eight years from today. The relevant market interest rate is 4.20%. (4 points). Find the future value of $100 invested today for 5 years at an annual rate of 6%, paid monthly. (4 points)