I don't know how to answer this question but I would appreciate it if someone could explain

Mills Corporation acquired as an investment $270 million of 8% bonds, dated July 1, on July 1, 2021. Company management is holding the bonds in its trading portfolio. The market interest rate (yield) was 6% for bonds of similar risk and maturity. Mills paid $310 million for the bonds. The company will receive interest semiannually on June 30 and December 31. As a result of changing market conditions, the fair value of the bonds at December 31, 2021, was $290 million. Required: 1. & 2. Prepare the journal entry to record Mills'investment in the bonds on July 1, 2021 and interest on December 31, 2021, at the effective (market) rate. 3. Prepare the journal entry by Mills to record any fair value adjustment necessary for the year ended December 31, 2021. 4. Suppose Moody's bond rating agency upgraded the risk rating of the bonds, and Mills decided to sell the investment on January 2, 2022, for $320 million. Prepare the journal entries required on the date of sale, Complete this question by entering your answers in the tabs below. Req 1 and 2 Reg 3 Reg 4 Suppose Moody's bond rating agency upgraded the risk rating of the bonds, and Mills decided to sell the investment on January 2, 2022, for $320 million. Prepare the journal entries required on the date of sale. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Enter your answers in millions rounded to 1 decimal place, (1.e., 5,500,000 should be entered as 5.5).) Show less View transaction list Journal entry worksheet Complete this question by entering your answers in the tabs below. Req 1 and 2 Req3 Reg 4 Prepare the journal entry to record Mills'investment in the bonds on July 1, 2021 and interest on December 31, 2021, at (market) rate. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. answers in millions rounded to 1 decimal place, i.e., 5,500,000 should be entered as 5.5).) View transaction list Journal entry worksheet Record Mills'investment in the bonds on July 1, 2021. Note: Enter debits before credits. Date General Journal Debit Credit July 01, 2021 Req 1 and 2 Reg 3 Reg 4 Prepare the journal entry by Mills to record any fair value adjustment necessary for the year ended December 31, 2021. (If no entry is required for a transaction/event, select "No journal entry required in the first account field. Enter your answers in millions rounded to 1 decimal place, (i.e., 5,500,000 should be entered as 5.5).) View transaction list Journal entry worksheet Prepare any journal entry needed to adjust the investment to fair value. Note: Enter debits before credits General Journal Debit Credit Date December 31 2021 Req 1 and 2 Reg 3 Reg 4 Suppose Moody's bond rating agency upgraded the risk rating of the bonds, and Mills decided to sell the investment on January 2, 2022, for $320 million. Prepare the journal entries required on the date of sale. (If no entry is required for a transaction/event, select "No journal entry required in the first account field. Enter your answers in millions rounded to 1 decimal place, (i.e., 5,500,000 should be entered as 5.5).) Show less View transaction list Journal entry worksheet Prepare any Journal entry needed to adjust the investment to fair value. Note: Enter debits before credits General Journal Debit Credit Date January 02, 2022 Req 1 and 2 Reg 3 Reg 4 Suppose Moody's bond rating agency upgraded the risk rating of the bonds, and Mills decided to sell the investment on January 2, 2022, for $320 million. Prepare the journal entries required on the date of sale. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Enter your answers in millions rounded to 1 decimal place, (i.e., 5,500,000 should be entered as 5.5).) Show less View transaction list Journal entry worksheet Record the sale of the investment by Mills. Note: Enter debits before credits General Journal Debit Credit Date January 02, 2022