The ledger of Carla Vista Rental Agency on March 31 of the current year includes the selected accounts, shown below, before adjusting entries have been prepared.

Debit Credit

Prepaid Insurance $ 12,600

Supplies 2,700

Equipment 31,250

Accumulated Depreciation

Equipment $ 8,000

Notes Payable 21,000

Unearned Rent Revenue 9,600

Rent Revenue 61,000

Interest Expense 0

Salaries and Wages Expense 13,000

An analysis of the accounts shows the following.

1. The equipment depreciates $500 per month.

2. One-third of the unearned rent revenue was earned during the quarter.

3. Interest of $525 is accrued on the notes payable.

4. Supplies on hand total $590.

5. Insurance expires at the rate of $700 per month.

Prepare the adjusting entries at March 31, assuming that adjusting entries are made quarterly. Additional accounts are Depreciation Expense, Insurance Expense, Interest Payable, and Supplies Expense.