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0/4 points Seasons Limited paid $135,000 to purchase equipment at the beginning of 2019. Seasons Limited estimated the useful life of the equipment to be 5 years or 200,000 units. The equipment will be considered fully depreciated when the balance in the Accumulated Depreciation account reaches $120,000. The equipment produced 52,000 units in 2020, Required: a. Determine the estimated residual value of the equipment b. What is the depreciable cost of the equipment? c. Calculate depreciation expense for 2020 under the double-declining-balance method