The balance in prepaid insurance is a one-year premium paid on June 1, 2020. 2. An inventory count on August 31 shows $445 of supplies on hand. 3. Annual depreciation rates are (a) buildings (4%) (b) equipment (10%). Salvage value is estimated to be 10% of cost. 4. Unearned Rent Revenue of $4,172 was earned prior to August 31. 5. Salaries of $365 were unpaid at August 31. 6. Rentals of $843 were due from tenants at August 31. (Use Accounts Receivable account.) 7. The mortgage interest rate is 8% per year.