Consider the following information from a company's unadjusted trial balance at December 31, 2018. All accounts have normal balances. $ 6,400 Accounts Receivable Accounts Payable 745 Cash 1,890 Service Revenue 7,970 5,900 Common Stock Equipment Insurance Expense 6,800 495 Land 5,700 Notes Payable, Due 2021 5,900 Notes Receivable, Matures 2019 1,390 Prepaid Insurance 495 Rent Expense 1,495 Retained Earning, January 1, 2018 Salaries and Wages Expense 8,040 3,890 What is the total of the debit side of the unadjusted trial balance