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Bramble Company purchased a new machine on October 1,2022 , at a cost of $121,500. The company estimated that the machine will have a salvage value of $12,500. The machine is expected to be used for 10,000 working hours during its 4 -year life. (a) Compute the depreciation expense under straight-line method for 2022. eTextbook and Media Attempts: 0 of 3 used (b) Compute the depreciation expense under units-of-activity for 2022, assuming machine usage was 1,670 hours. (Round intermediate calculations to 2 decimal places, eg.10.12 and final answer to 0 decimal places, es. 2,125.) Compute the deprecistion expense under declining-balance using double the straight-line rate for 2022 and 2023 , (Round final answers to 0 decimal places, es 2,125