show calculations please

Part 3: Alpha Watches Company purchased a machine on January 1", 2018, for $44,000. Expected useful life is 10 years or 100,000 units. In year 2018, 3000 units were sold, and in year 2019, 14,000 units were sold. Residual value is $4,000. Requirements: 1. Determine the depreciation expense for year 2018 and 2019 using the following methods: a. Straight-line b. Units-of-production c. Double-declining-balance 2. Prepare a schedule that shows annual depreciation expense, accumulated depreciation, and book value for 2018 and 2019 using the following methods. a. Straight-line b. Units-of-production c. Double-declining-balance 3. Assume that Alpha Watches sold the machine for $27,000 cash on July, 1, 2020. Assume that management has depreciated the machine by using the double-declining balance method. Record Alpha Watches' depreciation for 2020 and the sale of the machine on July 1, 2020. 4. The following list describes aspects of either the allowance method or the direct write-off method to account for bad debts. For each item listed, indicate if the statement best describes either the allowance method of the direct-write off method. a. No attempt is made to predict bad debt expense. b. Accounts receivable on the balance sheet is reported at net realizable value. c. When an account is written off, the debit is to Bad Debt Expense. d. Sales and any bad debt expense are usually not recorded in the same period; thus, proper-matching (of revenue and expense recognition) does not consistently occur. e. Requires the company to estimate bad debt expense related to the sales recorded in that period