please help me to do this 2 questions

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Perdue Company purchased equipment on April 1 for $51,300. The equipment was expected to have a useful life of three years, or 4,320 operating hours, and a residual value of $1,620. The equipment was used for 800 hours during Year 1, 1.500 hours in Year 2, 1,300 hours in Year, and 720 hours in Year 4 Required: Determine the amount of depreciation expense for the years ended December 31, Year 1, Year 2, Year 3, and Year 4, by (a) the straight line method, (b) units-of-output method, and (c) the double-dedining balance method. Note: FOR DECLINING BALANCE ONLY, round the multiplier to four decimal places. Then round the answer for each year to the nearest whole dollar a. Straight line method Year Amount Year 1 Year 2 Year Year 4 b. Units of output method Year Amount Year 1 Year 2 Year 3 . ouage Menu Year Amount Year 1 $ Year 2 III Year 3 Year 4 b. Units-of-output method Year Amount Year 1 Year 2 Year 3