help please

Mohr Company purchases a machine at the beginning of the year at a cost of $31,000. The machine is depreciated using the double-declining balance method. The machine's useful life s estimated to be 5 years with a $4,000 salvage value. Depreciation expense in year 2 is: Multiple Choice O O $18.600 $6,200 $10,000 $7,440 $12,400