Depreciation by Two Methods A storage tank acquired at the beginning of the fiscal year at a cost of $85,000 has an estimated residual value of $5,000 and an estimated useful 25 years. a. Determine the amount of annual depreciation by the straight-line method. b. Determine the amount of depreciation for the first and second years computed by the double-declining-balance method. Do not round the double-dining balance rate. If required, round your answers to the nearest dollar