1. A company issues $16300000, 5.8%, 20-year bonds to yield 6% on January 1, 2019. Interest is paid on June 30 and December 31. The proceeds from the bonds are $15923229. Using straight-line amortization, what is the carrying value of the bonds on December 31, 2021?

2. A company issues $ 25650000, 9.8%, 20-year bonds to yield 10% on January 1, 2020. Interest is paid on June 30 and December 31. The proceeds from the bonds are $ 25209868. What is interest expense for 2021, using straight-line amortization?

3. On January 1, 2021, Waterway Industries issued its 12% bonds in the face amount of $ 8020000, which mature on January 1, 2031. The bonds were issued for $ 9005565 to yield 10%, resulting in bond premium of $ 985565. Waterway uses the effective-interest method of amortizing bond premium. Interest is payable annually on December 31. At December 31, 2021, Waterway's adjusted unamortized bond premium should be