Golden Eagle Company prepares monthly financial statements for its bank. The November 30 adjusted trial balance includes the following account information: November 30
Debit Credit
Supplies $1,000
Prepaid Insurance 4,000
Salaries Payable $9,000
Deferred Revenue 1,000

The following information is known for the month of December:

1. Purchases of supplies during December total $2,500.
2. Supplies on hand at the end of December equal $2,500.
3. No insurance payments are made in December.
4. Insurance cost is $1,000 per month.
5. November salaries payable of $9,000 were paid to employees in December.
6. Additional salaries for December owed at the end of the year are $14,000.

On November 1, a tenant paid Golden Eagle $1,500 in advance rent for the period November through January, and Deferred Revenue was credited for the entire amount.

Required:
Complete 4 adjusting entries on December 31st. There should be an adjusting entry for each of the following accounts; supplies, prepaid insurance, salaries payable, and unearned revenue.