23. (10 points) Scotsman Company prepares monthly financial statements. Below are listed some selected accounts and their balances in the September 30 trial balance before any adjustments have been made for the month of September. SCOTSMAN COMPANY Trial Balance (Selected Accounts) September 30, 2018 Debit Credit Supplies ...... 2,700 Prepaid Insurance 3,150 Office Equipment 16,200 Accumulated Depreciation Equipment. 1,000 Unearned Rent Revenue .... 1,200 (Note: Debit column does not equal credit column because this is a partial listing of selected account balances) An analysis of the account balances by the company's accountant provided the following additional information: 1. A physical count of office supplies revealed 800 on hand on September 30. 2. A two-year life insurance policy was purchased on June 1 for 3,600. 3. Office equipment depreciated 3,000 per year. 4. The amount of rent received in advance that remains unearned at September 30 is 400. Instructions (a) Using the above additional information, prepare the adjusting entries that should be made by Scotsman Company on September 30. (b) Assuming total revenue, total expense, and dividend in the trial balance before adjustments are 12,000, 4,500, and 1,000 respectively, determine the net income for the month of September