A company purchased factory equipment for $28,000. It is estimated that the equipment will have an $8,000 salvage value at the end of its estimated 10-year useful life. If the company uses the double-declining-balance method of depreciation, the book value at the end of the second year after purchase would be Select one: a. $9,920 b. $17,920 c. $10,080 d) $22,680 c. $18.080