The ledger of Greg Rentals on 30 June 2019 includes the following selected accounts before adjusting entries have been prepared: Debit $ Credit $ Prepaid insurance 21000 Supplies 15000 Equipment 162000 Accumulated depreciation equipment 32400 Bank loan 130000 Rent revenue received in advance 52500 Rent revenue 390000 Wages expense 91000 An analysis of the accounts shows the following adjustments that need to be made: 1. The equipment depreciates $2700 per month. 2. The rent revenue received in advance was for 7 months commencing 1 June. 3. Interest of $2600 is accrued on the bank loan. 4. Supplies on hand total $4750. 5. The benefits of prepaid insurance expire at the rate of $1750 per month. Required a) Prepare the adjusting entries at 30 June 2019. (12 Marks) b) Determine the adjusted balances of the following general ledger accounts at 30 June 2019. (3 Marks) (Total 15 Marks) Debit $ Credits 1. Rent revenue received in advance 2. Supplies