Straight-Line Depreciation A building acquired at the beginning of the year at a cost of $141,400 has an estimated residual value of $5,400 and an estimated useful life of 10 years. Determine the following: (a) The depreciable cost (b) The straight-line rate (c) The annual straight-line depreciation Depreciation by Two Methods A Kubota tractor acquired on January 8 at a cost of $90,000 has an estimated useful life of ten years. Assuming that it will have no residual value. a. Determine the depreciation for each of the first two years by the straight-line method. First Year Second Year b. Determine the depreciation for each of the first two years by the double-declining-balance method. Do not round the double-declining balance rate. If required, round your final answer to the nearest dollar. First Year Second Year