Mohr Company purchases a machine at the beginning of the year at a cost of $24,000. The machine is depreciated using the straight-line method. The machine's useful life is estimated to be 5 years with a $4,000 salvage value. The book value of the machine at the end of year 2 is: Multiple Cholce $4,000 $8,000. $12,000 $16,000 $20,000 Martin Company purchases a machine at the beginning of the year at a cost of $60,000. The machine is depreciated using the straight-line method. The machine's useful life is estimated to be 4 years with a $5,000 salvage value. Depreciation expense in year 4 is: Multiple Cholce $15,000 $13,750. $55,000. $60,000. $0. Mohr Company purchases a machine at the beginning of the year at a cost of $24,000. The machine is depreciated using the double-declining-balance method. The machine's useful life is estimated to be 5 years with a $4,000 salvage value. The machine's book value at the end of year 2 is: Multiple Choice $12,000 $7,200. $9,600. $8,640. $14,400