On January 1, Marble Trucking purchased a used Kenworth truck at a cost of $44,000. Marble Trucking expects the truck to remain useful for four years (430,000 miles) and to have a residual value of $1,000. Marble Trucking expects the truck to be driven 86,000 miles the first year and 150,500 miles the second year. Compute second-year depreciation expense on the truck using the following methods a. Straight-line b. Units-of-production c. Double-declining-balance Start by selecting the formulas needed to compute annual depreciation under each of the three methods Straight-line depreciation Units-of-production depreciation Double-declining-balance depreciation - Book value x [(1 / Useful life in miles) x 2 Book value x [(1 Useful life in years) x 2] Book value x [(1/ Useful life in years) x 3] (Cost - Residual value)/Useful life in miles (Cost - Residual value)/ Useful life in miles] x Miles driven (Cost Residual value) / Useful life in years Cost/Useful life in miles Cost / Useful life in years