DeCort Company had these adjusting entry situations at the end of December:

1. On May 1, DeCort Company paid $960 for a two-year insurance policy. The policy was for the period May 1 through April 30 (2 years). This is the first year of the policy. The transaction was recorded as insurance expense.

2. On December 1, DeCort Company purchased $400 of supplies for cash. The purchase was recorded as an asset, supplies. On December 31, it was determined that various supplies had been consumed in operations and that supplies costing $300 remained on hand.

3. DeCort Company holds a note receivable for $4,000. This note is interest-bearing. The interest will be received when the note matures. The note is a one-year note receivable made on June 30, bearing 5% simple interest.

4. DeCort Company owes salaries in the amount of $800 at the end of December.

5. As of December 31, DeCort Company had received $600 for services to be performed. These services had not been performed as of December 31. A liability, Unearned Revenue, needs to be recognized, and revenue needs to be reduced.

6. On December 20, DeCort Company received a $400 bill for advertising in December. The liability account, Accounts Payable, needs to be recognized along with the related expense.

Required:

Record the adjusting entries at December 31, using T-accounts.