20) CHEMEX, Inc. issues a 10-year note that will pay $1,500 at maturity, and no annual payments (Note A). It also issues an 8-year Note B that has the same credit rating and will pay $800 at maturity, plus an annual payment at the beginning of each year. If both A and B sell for $480, what will the amount of the payment be on Note B? 21) [6] ParkMoor sells an undeveloped parcel of land for $27.0 m. Under the terms of the agreement, ParkMoor will receive some cash at closing and a note that pays $6.8 m at the end of years 4, 5 and 6, and $12.5 m at the end of year 8. If ParkMoor discounts these payments at 8.2%, how much cash will it ask for at closing?