Sargent Corporation bought equipment on January 1, 2017. The equipment cost $360,000 and had an expected salvage value of $60,000. The life of the equipment was estimated to be 6 years. The depreciable cost of the equipment is Select one: a. $360,000. ob. $200,000. c. $50,000. d. $300,000. On January 1, a machine with a useful life of five years and a residual value of $30,000 was purchased for $90,000. What is the depreciation expense for year 2 under the double-declining- balance method of depreciation? 10 u b. d. Select one: a. $17,280 O b. $36,000 C. $28,800 d. $21,600