ers 1 thru 9 Saved Duluth Ranch, Inc. purchased a machine on January 1, 2018. The cost of the machine was $42,500. Its estimated residual value was $13,500 at the end of an estimated 5-year life. The company expects to produce a total of 10,000 units. The company produced 1,55 units in 2018 and 2,000 units in 2019. Required: a. Calculate depreciation expense for 2018 and 2019 using the straight-line method b. Calculate the depreciation expense for 2018 and 2019 using the units of production method. c. Calculate depreciation expense for 2018 through 2022 using the double-declining balance method. Complete this question by entering your answers in the tabs below. Required A Required B Required Calculate depreciation expense for 2018 and 2019 using the straight-line method 2018 Depreciation Expense Per Year 2019 Required 8 >