15 pts Computer equipment was acquired at the beginning of the year at a cost of $82.500 that has an estimated residual value of $2,100 and an estimated useful life of 7 years. Part 1. Determine the (a) annual straight-line depreciation and (b) the accumulated Part 2. Determine (a) the depreciation rate and (b) the depreciation expense for this year under Units of Production if the equipment will last for 14,000 hours and it was used this year for 1,200 hours. Part 3. Determine (a) the depreciation expense for year 2 and the (b) net book value for year 2 using the double declining balance depreciation method