Determination of Acquisition Cost On January 1, 2015, Emming Corporation purchased some machinery. The machinery has an estimated life of 10 years and an estimated residual value of $5,000. The depreciation expense on this machinery was $20,000 in 2017 Required: Compute the acquisition cost of the equipment under the following depreciation methods: Straight-line s 2. Sum-of-the-years'-digits$ 3. Double-declining-balance $