11. Pricing bonds with spot rates: A four-year default-free annual-pay coupon bond is priced at 100 percent of par. What is its coupon (in percent of par) if annual spot rates are as follows:

r₁ = 2.1%, r₂ = 2.21%, r₃ = 2.22%, r₄ = 2.86%

Carry intermediate calcs. to four decimals. Answer to two decimals.

12. A 9.2% semiannual-pay corporate bond matures 15 August 2028 and makes coupon payments on 15 February and 15 August. The bond uses the 30/360 day-count convention for accrued interest. The bond is priced for sale on June 5, 2020 (that is, 110 days since the Feb. 15 coupon). What is its flat price (or clean price) per $ 100 of par value on June 5, 2020 if its yield to maturity is 8.4%? Carry intermediate calcs. to four decimals. Answer to two decimals.