On January 1, 2021, for $18 million, Monument Company purchased 10 year, 10% bonds, dated January 1, 2021, with a face amount of $20 million. For bonds of similar risk and maturity, the market yield is 12%. Interest is paid semiannually on June 30 and December 31. Required: 1. Prepare the journal entry to record interest on June 30, 2021, using the straight-line method. 2. Prepare the journal entry to record interest on December 31, 2021, using the straight-line method.