After the success of the companys 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.NumberAccount TitleDebitCredit$101$Cash$ $38,664106$Accounts receivable$13,318126$Computer supplies$2,545128$Prepaid insurance$2,040131$Prepaid rent$3,000163$Office equipment$8,500164$Accumulated depreciationOffice equipment $ $0167$Computer equipment$21,200168$Accumulated depreciationComputer equipment $0201$Accounts payable $0210$Wages payable $0236$Unearned computer services revenue $0307$Common stock $72,000318$Retained earnings $0319$Dividends$6,200403$Computer services revenue $29,334612$Depreciation expenseOffice equipment$0613$Depreciation expenseComputer equipment$0623$Wages expense$2,600637$Insurance expense$0640$Rent expense$0652$Computer supplies expense$0655$Advertising expense$1,688676$Mileage expense$624677$Miscellaneous expenses$180684$Repairs expenseComputer$775901$Income summary $0$ Totals$ $101,334$$ $101,334$Business Solutions had the following transactions and events in December $2021.$December $2$Paid $$990$ cash to Hillside Mall for Business Solutions's share of mall advertising costs.December $3$Paid $$410$ cash for minor repairs to the companys computer.December $4$Received $$4,250$ cash from Alexs Engineering Company for the receivable from November.December $10$Paid cash to Lyn Addie for six days of work at the rate of $$100$ per day.December $14$Notified by Alexs Engineering Company that Business Solutions's bid of $$7,300$ on a proposed project has been accepted. Alexs paid a $$2,000$ cash advance to Business Solutions.December $15$Purchased $$1,600$ 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 $$6,225$ cash.December $22-26$Took the week off for the holidays.December $28$Received $$3,400$ cash from Gomez Company on its receivable.December $29$Reimbursed S$.$ Rey for business automobile mileage $(500$ miles at $$0\mathrm{.}28$ per mile$).$December $31$Paid $$1,000$ cash for 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 $$660$ still available.Three months have expired since the $12-$month insurance premium was paid in advance.As of December $31,$ Lyn Addie has not been paid for four days of work at $$100$ 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. Post those entries to the accounts in the ledger$\mathrm{.}2-$a$.$ Prepare adjusting entries to reflect a through f$\mathrm{.}2-$b$.$ Post the journal entries to record each of the December transactions, adjusting entries to the accounts in the ledger$\mathrm{.}3.$ Prepare an adjusted trial balance as of December $31,2021\mathrm{.}4.$ Prepare an income statement for the three months ended December $31,2021\mathrm{.}5.$ Prepare a statement of retained earnings for the three months ended December $31,2021\mathrm{.}6.$ Prepare a classified balance sheet as of December $31,2021\mathrm{.}7-$a$.$ Record the necessary closing entries as of December $31,2021\mathrm{.}7-$b$.$ Each closing entry is posted automatically to the general ledger. $($This is for reference only. No student work is required.$)8.$ Prepare a post$-$closing trial balance as of December $31,2021.$