1. A firm purchased a four-year insurance policy for $8,640 on July 1, 2019. The $8,640 was debited to the Prepaid Insuranceaccount.

2. On December 1, 2019, a firm signed a contract with a local radio station for advertising that will extend over a three-year period. The firm paid $42,480 in advance and debited the amount to Prepaid Advertising.

Prepare end-of-month adjusting entries for each of the above situations.