Geddie Products purchased a machine for $60,000 on July 1, 2020. The company estimates that the useful life of the asset is 4 years, and its life in hours = 10,000 hours. The estimated salvage value is 0. During 2020, the hours used were 1,250 hours.

1) Calculate the Depreciable Base and the depreciation expense of 2020 using the Straight-line method

2) Calculate the depreciation expense of 2020 using the double-declining balance method

3) Calculate the depreciation expense of 2021 using the double-declining balance method

4) Calculate the depreciation expense of 2020 using the Activity Method

5) Calculate the depreciation expense of 2020 using the Sum-of-the-Years-Digits method