On November 1, 2019, the account balances of GBS Co. were as follows:

Debit Credit Cash RM 2,790 Accumulated DepreciationEquipment RM 500 Accounts Receivable 2,510 Accounts Payable 2,100 Supplies 2,000 Unearned Service Revenue 1,400 Equipment 10,000 Salaries and Wages Payable 500 Owner's Capital 12,800 M M During November, the following summary transactions were completed. Nov.8 Paid RM1,100 for salaries due to employees, of which RM600 is for November salaries. 10 Received RM1,200 cash from customers on account. 12 Received RM1,400 cash for services performed in November. 15 Purchased equipment on account RM3,000. 17 Purchased supplies on account RMSOO. 20 Paid creditors on account RM2,500. 22 Paid November rent RM300. 25 Paid salaries RM1,300. 27 Performed services on account and billed customers for these services RM400. 29 Received RM550 from customers for future service