CUMULATIVE PROBLEM - Ballister Systems This comprehensive problem was introduced in Chapter 2 and continues in Chapters 4 and 5. If the Chapter 2 segment has not been completed, the assignment can begin at this point. ............... .................. After the success of its first two months, Ballister Dorth has decided to continue operating Ballister Systems. (The transactions that occurred in these months are described in Chapter 2.) Before proceeding in December, Dorth adds these new accounts to the chart of accounts for the ledger: Account No. Accumulated Depreciation, Office Equipment 164 Accumulated Depreciation, Computer Equipment 168 Wages Payable 210 Unearned Computer Services Revenue 236 Depreciation Expense, Office Equipment 612 Depreciation Expense, Computer Equipment 613 Insurance Expense 637 Rent Expense 640 Computer Supplies Expense 652 Required 1. Prepare journal entries to record each of the following transactions for Ballister Systems. Post the entries to the accounts in the ledger. Dec. 3 Paid $4,100 to the Londonderry Mall for the company's share of mall advertising costs for December. 3 Paid $330 to repair the company's computer. 4 Received the balance owing from Everest Entertainment. 10 Paid Trish Duresh for three days' work at the rate of $310 per day. 14 Notified by Everest Entertainment that Ballister's bid of $12,450 on a proposed project was accepted. Everest paid an advance of $4,500. 17 Purchased $960 of computer supplies on credit from Staples Supplies. 18 Sent a reminder to Blackfeather Adventures to pay the $3,990 originally recorded on November 8. 20 Completed a project for Piperell Lake Industries and received $1,100 cash. 24-28 Took the week off for the holidays. 31 Received $1,000 as partial payment from Blackfeather Adventures. 31 Reimbursed Ballister Dorth's business automobile expenses of 2,400 kilometres at $2.05 per kilometre. 31 Ballister Dorth withdrew $2,500 cash from the business. ................ 2. Prepare adjusting entries to record the following additional information collected on December 31, 2020. Post the entries to the accounts in the ledger. Dec. 31 a. The December 31 inventory of computer supplies was $390. b. Three months have passed since the annual insurance premium was paid. c. As of the end of the year, Trish Duresh has not been paid for 15 days of work at the rate of $310 per day. d. The computer equipment is expected to have a five-year life with no residual value. e. The office equipment is expected to have a seven-year life with no residual value. f. Prepaid rent for three of the six months has expired. 3. Prepare an adjusted trial balance as of December 31, 2020.