I am pretty confident about all the answers above, but I am struggling with the answers below. Please help.

Thank you in advance for helping explain problems 4-8!

SP 3 Serial Problem Business Solutions (Algo) LO P1, P2, P3, P4, P5 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. Business Solutions had the following transactions and events in December 2021. December 2 Paid $1,010 cash to Hillside Mall for Business Solutions's share of mall advertising costs. December 2 Paid $1,010 cash to Hillside Mall for Business Solutions's share of mall advertising costs. December 3 Paid $450 cash for minor repairs to the company's computer. December 4 Received $4,450 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 $125 per day. December 14 Notified by Alex's Engineering Company that Business Solutions's bid of $7,300 on a proposed project been accepted. Alex's paid a $2,200 cash advance to Business Solutions. December 15 Purchased $1,800 of computer supplies on credit from Harris 0ffice 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 \$6,475 cash. December 22-26 Took the week off for the holidays. December 28 Received $3,900 cash from Gomez Company on its receivable. December 29 Reimbursed S. Rey for business automobile mileage (500 miles at $0.28 per mile). December 31 Paid $1,200 cash for 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 $660 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 \$125 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: 1. Prepare journal entries to record each of the December transactions. Post those entries to the accounts in the ledger. 2-a. Prepare adjusting entries to reflect a through f. 2-b. Post the journal entries to record each of the December transactions, adjusting entries to the accounts in the ledger. 3. Prepare an adjusted trial balance as of December 31, 2021. 4. Prepare an income statement for the three months ended December 31, 2021. 5. Prepare a statement of retained earnings for the three months ended December 31, 2021. 6. Prepare a classified balance sheet as of December 31, 2021. 7. Record the necessary closing entries as of December 31, 2021. Comprehensive Problem Part 2 i Complete this question by entering your answers in the tabs below. Prepare journal entries to record each of the December transactions. Post those entries to the accounts in the ledg Note: If no entry is required for a transaction or event, select "No journal entry required" in the first account field. Comprehensive Problem Part 2 i Comprehensive Problem Part 2 i Prepare adjusting entries to reflect a through f. Note: If no entry is required for a transaction or event, select "No journal entry required" in the first account fie Comprehensive Problem Part 2 Complete this question by entering your answers in the tabs below. Comprehensive Problem Part 2 Comprehensive Problem Part 2 i Help Comprehensive Problem Part 2 i Comprehensive Problem Part 2 Comprehensive Problem Part 2 i Complete this question by entering your answers in the tabs below. Prepare an adjusted trial balance as of December 31, 2021. Comprehensive Problem Part 2 Comprehensive Problem Part 2 Comprehensive Problem Part 2 i Prepare an income statement for the three months ended December 31, 2021. Comprehensive Problem Part 2 i 4. Prepare an income statement for the three months ended December 31, 2021. 5. Prepare a statement of retained earnings for the three months ended December 31, 2021. 6. Prepare a classified balance sheet as of December 31, 2021. 7. Record the necessary closing entries as of December 31, 2021. 8. Prepare a post-closing trial balance as of December 31, 2021. Complete this question by entering your answers in the tabs below. Prepare a statement of retained earnings for the three months ended December 31, 2021. Comprehensive Problem Part 2 (i Prepare a classified balance sheet as of December 31, 2021. Comprehensil Comprehensive Problem Part 2 i Record the necessary closing entries as of December 31, 2021. Journal entry worksheet Record the entry to close the revenue account(s). Note: Enter debits before credits. Comprehensive Problem Part 2 i Record the necessary closing entries as of December 31, 2021. Journal entry worksheet Record the entry to close the expense account(s). Note: Enter debits before credits. Comprehensive Problem Part 2 i Record the necessary closing entries as of December 31, 2021. Journal entry worksheet Record the entry to close the Income summary account. Note: Enter debits before credits. Comprehensive Problem Part 2 Record the necessary closing entries as of December 31, 2021. Journal entry worksheet Record the entry to close the dividends account. Note: Enter debits before credits. Comprehensive Problem Part 2 i Complete this question by entering your answers in the tabs below. Prepare a post-closing trial balance as of December 31, 2021