3. Service revenue unrecorded in July totaled $2,400. Prepare the adjusting entries needed at July 31, 2020. (Credit account titles are automatically indented when the amount is entered. Do not indent manually.) Date Account Titles and Explanation Debit Credit July 31 Salaries and Wages Expense 1600 Salaries and Wages Payable 1600 July 31 Interest Expense 4800 4800 Interest Payable July 31 Interest Expense 2400 Service Revenue 2400