Addison Company will issue a zero-coupon bond this coming month. The? bond's projected yield is 7%. If the par value is ?$1,000?, what is the? bond's price using a semiannual convention if
a. the maturity is 15 ?years?
b. maturity is 35 ?years?
c. the maturity is 70 ?years?
d. the maturity is 80 ?years?