Sarasota Company purchased a new machine on October 1,2020 , at a cost of $113,500. The company estimated that the machine will have a salvage value of $13,500. The machine is expected to be used for 10,000 working hours during its 5-year life. (a) Your answer is correct. Compute the depreciation expense under straight-line method for 2020. (Round answer to 0 decimal places, e.g. 2,125.) eTextbook and Media Attempts: 1 of 3 used (b) Your answer is correct. Compute the depreciation expense under units-of-activity for 2020, assuming machine usage was 1,620 hours. (Round intermediate calculations to 1 decimal place, e.g.10.1 and final answer to 0 decimal places, e.g. 2,125.) Compute the depreciation expense under declining-balance using double the straight-line rate for 2020 and 2021 . (Round answers to 0 decimal places, e.g. 2,125.)