3. March 1, 2019 Purchased Equipment of $400,000 for cash. The equipment has 10-year life and a salvage value of $120,000. Required: A) Determine the depreciation expense for years 2019 and 2020 using each of each methods. a) Straight line method of depreciation. b) Double Declining Balance Method of Depreciation. c) Activity based or Units of production method of depreciation, assuming that the Equipment can be used for a maximum of 500,000 hours during its useful life and It was used for 100,000 hours in 2019 and used for 150,000 hours in year 2020. B) Assuming the company chose to apply straight line depreciation MacBook Air