Current Attempt in Progress Metlock Corporation purchased a new machine for its assembly process on August 1, 2020. The cost of this machine was $141,600. The company estimated that the machine would have a salvage value of $15,600 at the end of its service life. Its life is estimated at 5 years, and its working hours are estimated at 20,000 hours. Year-end is December 31. Compute the depreciation expense under the following methods. Each of the following should be considered unrelated. (Round depreciation rate per hour to 2 decimal places, eg. 5.35 for computational purposes. Round your answers to O decimal places, es. 45,892.) (a) $ (b) $ Straight-line depreciation for 2020 Activity method for 2020, assuming that machine usage was 850 hours Sum-of-the-years-digits for 2021 Double-declining balance for 2021 (c) $ (d) Attempts: 0 of 1 used Submit Answer Save for Later Last saved 2 minutes ago Saved work will be auto-submitted on the due date