Straight-Line Depreciation A building acquired at the beginning of the year at a cost of $96,700 has an estimated residual value of $3,700 and an estimated useful life of 10 years. Determine the following: (a) The depreciable cost $:] (b) The straight-line rate C] % (c) The annual straightline depreciation $:] Units-ofactivity Depreciation A truck acquired at a cost of $405,000 has an estimated residual value of $24,000, has an estimated useful life of 60,000 miles, and was driven 4,800 miles during the year. Determine the following. If required, round your answer for the depreciation rate to two decimal places. (a) The depreciable cost $:] (b) The depreciation rate $:] per mile (c) The units-ofactivity depreciation for the year $:]