16 Equipment with a cost of $400,000 has an estimated salvage value of $25,000 and an estimated life of 4 years or 15,000 hours. It is to be depreciated using the units-of-activity method. What is the amount of depreciation for the first full year, during which the equipment was used 3,300 hours? a out of question Select one: a. $82,500 b. $100,000 C. $93,750 d. $113,800 n 17 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? ed S out of a. b. ag question c. d. Select one: a. $28,800 b. $17,280 C. $21,600 d. $36,000