The ledger of Blue Spruce Corp. on March 31 of the current year includes the selected accounts below before adjusting entries have been prepared. Debit Credit Supplies $7,500 Prepaid Insurance 9,000 Equipment 62,500 Accumulated Depreciation—Equipment $21,000 Notes Payable 50,000 Unearned Rent Revenue 31,000 Rent Revenue 150,000 Interest Expense 0 Salaries and Wages Expense 35,000 An analysis of the accounts shows the following. 1. The equipment depreciates $700 per month. 2. Half of the unearned rent revenue was earned during the quarter. 3. Interest of $1,000 is accrued on the notes payable. 4. Supplies on hand total $2,125. 5. Insurance expires at the rate of $1,000 per month. Prepare the adjusting entries at March 31, assuming that adjusting entries are made quarterly. (If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts. Credit account titles are automatically indented when the amount is entered. Do not indent manually.)