on february 13 scandia co paid 1 650 to install a hydraulic lift and 25 for an air f 642777

A building acquired at the beginning of the year at a cost of $316,000 has an estimated residual value of $48,000 and an estimated useful life of 40 years. Determine (a) the depreciable cost, (b) the straight line rate, and (c) the annual straight line depreciation.
A tractor acquired at a cost of $120,000 has an estimated residual value of $5,000, has an estimated useful life of 50,000 hours, and was operated 4,200 hours during the year. Determine (a) the depreciable cost, (b) the depreciation rate, and (c) the units of production depreciation for the year.
A truck acquired at a cost of $90,000 has an estimated residual value of $18,000, has an estimated useful life of 200,000 miles, and was driven 40,000 miles during the year. Determine (a) the depreciable cost, (b) the depreciation rate, and (c) the units of production depreciation for the year.