A company purchased factory equipment for $700,000. It is estimated that the equipment will have a $70,000 salvage value at the end of its estimated 5-year useful life. If the company uses the double-declining-balance method of depreciation, the amount of annual depreciation recorded for the second year after purchase would be Select one: O a. $120,960. b. $168,000. c. $252,000. d. $280,000 Mott Company uses the units-of-activity method in computing depreciation. A new plant asset is purchased for $48,000 that will produce an estimated 100,000 units over its useful life. Estimated salvage value at the end of its useful life is $4,000. What is the depreciation cost per unit? Select one: a. $4.80 b. $4.40 C. $.48 d. $.44