Answer and Explanation:
As per the data given in the question,
Journal entries on July 1 and Dec. 31,2021
July-01 Investment in bonds A/C Dr. $300 million
Premium on bonds A/c Dr. $40 million
To Cash A/c $340 million
Dec-31 Cash A/c Dr. $10.5 million
($300 × 3.5%)
To Premium on bonds A/c $2.00 million
To Interest Revenue A/c $8.5 million
($340 × 2.5%)