Computer equipment was acquired at the beginning of the year at a cost of $47,500 that has an estimated residual value of $2,900 and an estimated useful life of 5 years, Determine the (a) depreciable cost, (b) double-declining-balance rate, and (c) double-declining balance depreciation for the first year. a. Depreciable cost b. Double-declining-balance rate c. Double-declining balance depreciation for the first year