Computer equipment was acquired at the beginning of the year at a cost of $65,000 that has an estimated residual value of $3, 800 and an estimated useful life of 8 years. Determine the (a) depreciable cost, (b) straight-line rate or percentage, and (c) annual straight-line depreciation. Determine (a) the depreciation rate and (b) the depreciation for this year under Units of Production equipment will last for 10,000 hours and it was used this year for 2,000 hours