Depreciation by Three Methods; Partial Years Perdue Company purchased equipment on April 1 for $43,740. The equipment was expected to have a useful the of three years, or 6,000 operatiny haurs, and a inalidial value of \$1,740. The equipment was used for 1,100 hours during Year 1, 2,100 houn in Year 2, 1,800 hours in Year 3, and 1,000 heurs 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 (o) the itruight-linp mathod, (b) the units-of-activity mathod, and (c) the double-dedining-balance method. Note: Round all final values for each depreciation method and each year to the nearest whole dellar. a. Straight-line method b. Units-of-activity method c. Double-declining-balance method