Serial Problem Business Solutions LO P1, P2, P3, P4, P5, P6 After the success of the company's first two months, Santana Rey continues to operate Business Solutions. The November 30, 2019, unadjusted trial balance of Business Solutions (reflecting its transactions for October and November of 2019) follows. No. 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 Depreciation expense-Office equipment Depreciation expense-Computer equipment Insurance expense 640 Rent expense 652 Computer supplies expense 655 Advertising expense 676 Mileage expense 677 Miscellaneous expenses 684 Repairs expense-Computer Totals Debit Credit $ 39,064 13,518 2,545 1,980 3,160 8,000 0 23,600 0 0 0 0 70,000 0 5,800 33,314 0 0 2,300 0 0 0 1,718 614 250 765 $103,314 $103,314 Business Solutions had the following transactions and events in December 2019. Dec. 2 Paid $985 cash to Hillside Mall for Business Solutions' share of mall advertising costs. 3 Paid $410 cash for minor repairs to the company's computer. 4 Received $4,750 cash from Alex's Engineering Co. for the receivable from November. 10 Paid cash to Lyn Addie for six days of work at the rate of $115 per day. 14 Notified by Alex's Engineering Co. that Business Solutions' bid of $7,400 on a proposed project has been accepted. Alex's paid a $1,900 cash advance to Business Solutions. 15 Purchased $1,700 of computer supplies on credit from Harris Office Products. 16 Sent a reminder to Gomez Co. to pay the fee for services recorded on November 8. 20 Completed a project for Liu Corporation and received $6,225 cash. 22- Took the week off for the holidays. 26 28 Received $3,700 cash from Gomez Co. on its receivable. 29 Reimbursed S. Rey for business automobile mileage (500 miles at $0.25 per mile). 31 The company paid $1,000 cash in dividends. The following additional facts are collected for use in making adjusting entries prior to preparing financial statements for the company's first three months. a. The December 31 inventory count of computer supplies shows $680 still available. b. Three months have expired since the 12-month insurance premium was paid in advance. c. As of December 31, Lyn Addie has not been paid for four days of work at $115 per day. d. The computer system, acquired on October 1, is expected to have a four-year life with no salvage value. e. The office equipment, acquired on October 1, is expected to have a five-year life with no salvage value. f. Three of the four months' prepaid rent have expired. Required: 3. Prepare an adjusted trial balance as of December 31, 2019. 4. Prepare an income statement for the three months ended December 31, 2019. 5. Prepare a statement of retained earnings for the three months ended December 31, 2019. 6. Prepare a balance sheet as of December 31, 2019. 7. Record the necessary closing entries as of December 31, 2019 and then post the closing entries to the general ledger in Requirement 2B. 8. Prepare a post-closing trial balance as of December 31, 2019