The November 30, 2021, unadjusted trial balance of Business Solutions is found in the Trial balance tab. Business Solutions had the following transactions and events in December 2021. December 2 Paid $1,025 cash to Hillside Mall for Business Solutions' share of mall advertising costs. December 3 Paid $500 cash for minor repairs to the company's computer. December 4 Received $3,950 cash from Alex's Engineering Co. 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 Co. that Business Solutions' bid of $7,000 on a proposed project has been accepted. Alex's paid a $1,500 cash advance to Business Solutions. December 15 Purchased $1,100 of computer supplies on credit from Harris Office Products. December 16 Sent a reminder to Gomez Co. to pay the fee for services recorded on November 8. December 20 Completed a project for Liu Corporation and received $5,625 cash. December 22-26 Took the week off for the holidays. it! December 28 Received $3,000 cash from Gomez Co. on its receivable. December 29 Reimbursed S. Rey for business automobile mileage (600 miles at $0.32 per mile). December 31 Paid $1,500 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 $580 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 has expired.