9. Based on the account balances below, what is the total of the debit and credit columns of the adjusted trial balance? Service revenue $4,300 Cash 1,525 Uneamed service rev. 5,320 Salaries and wages expense 1,050 Share Capital 390 Equipment Prepaid insurance Depreciation expense Accum, depreciation Retained earnings $7,400 1,225 640 1,280 550