plz write it clearly. thx

Problem one - Calculate depreciation ( 40%) A machine cost $400,000 on April 1, 2018. Its estimated residual value is $40,000 and its expected life is five years. Instructions (round your answer to the nearest dollars) Calculate the depreciation expense (to the nearest dollar) by each of the following methods and depreciation policy: 1. Partial year depreciation policy - based on the proportion of the months used (a) Straight-line for 2018 and 2019 (b) Double-declining balance for 2018 and 2019 (c) Sum-of-the-years'-digits for 2018 and 2019 2. Partial year depreciation policy - if the equipment is purchased on or before June 30 then a full year depreciation for the first year. (a) Double-declining balance method for 2018 and 2019