After the success of the companys first two months, Santana Rey continues to operate Business Solutions.

The November 30, 2020, unadjusted trial balance of Business Solutions (reflecting its transactions for October and November of 2020) follows.

No. Account Title Debit Credit 101 Cash $ 38,364 106 Accounts receivable 12,918 126 Computer supplies 2,545 128 Prepaid insurance 1,920 131 Prepaid rent 3,000 163 Office equipment 8,000 164 Accumulated depreciationOffice equipment $ 0 167 Computer equipment 21,200 168 Accumulated depreciationComputer equipment 0 201 Accounts payable 0 210 Wages payable 0 236 Unearned computer services revenue 0 307 Common stock 73,000 318 Retained earnings 0 319 Dividends 5,900 403 Computer services revenue 26,419 612 Depreciation expenseOffice equipment 0 613 Depreciation expenseComputer equipment 0 623 Wages expense 2,225 637 Insurance expense 0 640 Rent expense 0 652 Computer supplies expense 0 655 Advertising expense 1,698 676 Mileage expense 694 677 Miscellaneous expenses 220 684 Repairs expenseComputer 735 Totals $ 99,419 $ 99,419 Business Solutions had the following transactions and events in December 2020. Dec. 2 Paid $1,020 cash to Hillside Mall for Business Solutions's share of mall advertising costs. 3 Paid $430 cash for minor repairs to the companys computer. 4 Received $4,950 cash from Alexs Engineering Co. for the receivable from November. 10 Paid cash to Lyn Addie for six days of work at the rate of $120 per day. 14 Notified by Alexs Engineering Co. that Business Solutions's bid of $7,800 on a proposed project has been accepted. Alexs paid a $2,500 cash advance to Business Solutions. 15 Purchased $1,400 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 $6,175 cash. 2226 Took the week off for the holidays. 28 Received $3,500 cash from Gomez Co. on its receivable. 29 Reimbursed S. Rey for business automobile mileage (400 miles at $0.29 per mile). 31 The company paid $1,100 cash in dividends. The following additional facts are collected for use in making adjusting entries prior to preparing financial statements for the companys first three months. The December 31 inventory count of computer supplies shows $670 still available. Three months have expired since the 12-month insurance premium was paid in advance. As of December 31, Lyn Addie has not been paid for four days of work at $120 per day. The computer system, acquired on October 1, is expected to have a four-year life with no salvage value. The office equipment, acquired on October 1, is expected to have a five-year life with no salvage value. Three of the four months' prepaid rent have expired. Required: 1. Prepare journal entries to record each of the December transactions and events for Business Solutions. 2-a. Prepare adjusting entries to reflect a through f. 2-b. Post the journal entries to record each of the December transactions from Requirement 1 and adjusting entries from Requirement 2A. After completing Requirement 7, post the closing entries to the general ledger accounts. 3. Prepare an adjusted trial balance as of December 31, 2020. 4. Prepare an income statement for the three months ended December 31, 2020. 5. Prepare a statement of retained earnings for the three months ended December 31, 2020. 6. Prepare a balance sheet as of December 31, 2020. 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, 2020.