Exercise 10-06 a-c Riverbed Company purchased a new machine on October 1, 2020, at a cost of $111,300. The company estimated that the machine will have a salvage value of $11,300. The machine is expected to be used for 10,000 working hours during its 5-year life. Compute the depreciation expense under straight-line method for 2020. (Round answer to 0 decimal places, e.g. 2,125.) 2020 Depreciation expense Compute the depreciation expense under units-of-activity for 2020, assuming machine usage was 1,630 hours. (Round intermediate calculations to 1 decimal place, e.g.10.1 and final answer to 0 decimal places, e.g. 2,125.) 2020 Depreciation expense Compute the depreciation expense under declining-balance using double the straight-line rate for 2020 and 2021. (Round answers to o decimal places, e.g. 2,125.) 2020 2021 Depreciation expense Open Show Work Click if you would like to Show Work for this