On January 1, 2021, Canseco Plumbing Fixtures purchased equipment for $48,000. Residual value at the end of an estimated four year service life is expected to be $6,000. The company expects the equipment to operate for 12.000 hours. The equipment operated for 3,100 and 3,900 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. Straight-Line Depreciation Annual Depreciation Choose Numerator: 1 Choose Denominator Expense Estimated Useful Life (years) - = Depreciation Expense $ 10,500 Cost minus Salvage 42.000 Depreciation Expense $ .875 S 10.500 2021 2022