Check my work On January 1, 2021, Canseco Plumbing Fixtures purchased equipment for $46,000. Residual value at the end of an estimated four-year service life is expected to be $4,000. The company expects the equipment to operate for 12,000 hours. The equipment operated for 3,000 and 3,800 hours in 2021 and 2022, respectively. Required: a. Calculate depreciation expense for 2021 and 2022 using straight-line method. b. Calculate depreciation expense for 2021 and 2022 using double-declining-balance method. c. Calculate depreciation expense for 2021 and 2022 using units-of-production using hours operated. Complete this question by entering your answers in the tabs below. Required A Required B Required C Calculate depreciation expense for 2021 and 2022 using straight-line method. Choose Numerator: Straight-Line Depreciation Choose Denominator: Annual Depreciation