117 Mohr Company purchases a machine at the beginning of the year at a cost of $36,000. The machine is depreciated using the double-declining- balance method. The machine's useful life is estimated to be 8 years with a $4,000 salvage value. Depreciation expense in year 2 is: Skipped Multiple Choice 0 $9,000. 0 $4,500. 0 $6,750. 0 $27,000. 0 $8,000