After the success of the company's first two months, Santana Rey continues to operate Business Solutions. The November 30, 2021, unadjusted trial balance of Business Solutions (reflecting its transactions for October and November of 2021) follows. Number Account Title 101 Cash 106 Accounts receivable 126 Computer supplies 128 Prepaid insurance 131 Prepaid rent 163 Office equipment 164 Accumulated depreciation-office equipment 167 Computer equipment 168 Accumulated depreciation-Computer equipment 201 Accounts payable 210 Wages payable 236 Unearned computer services revenue 307 Common stock 318 Retained earnings 319 Dividends 403 Computer services revenue 612 613 623 Wages expense 637 640 Rent expense 652 655 Depreciation expense-Office equipment Depreciation expense-Computer equipment Insurance expense Computer supplies expense Advertising expense 676 Mileage expense 677 Miscellaneous expenses 684 Repairs expense-Computer 901 Income summary Totals Debit Credit $ 38,964 13,518 2,545 2,160 3,260 8,800 $ 0 22,000 0 0 66,000 0 6,200 36,869 0 0 2,125 0 0 0 1,638 684 190 785 $ 102,869 $ 102,869 Business Solutions had the following transactions and events in December 2021. December 2 Paid $930 cash to Hillside Mall for Business Solutions's share of mall advertising costs. December 3 Paid $470 cash for minor repairs to the company's computer. December 4 Received $4,250 cash from Alex's Engineering Company for the receivable from November. December 10 Paid cash to Lyn Addie for six days of work at the rate of $115 per day. December 14 Notified by Alex's Engineering Company that Business Solutions's bid of $7,000 on a proposed project has been accepted. Alex's paid a $1,800 cash advance to Business Solutions. December 15 Purchased $1,800 of computer supplies on credit from Harris Office Products. December 16 Sent a reminder to Gomez Company to pay the fee for services recorded on November 8. December 20 Completed a project for Liu Corporation and received $5,775 cash. December 22-26 Took the week off for the holidays.