Mohr Company purchases a machine at the beginning of the year at a cost of $42,000. The machine is depreciated using the straight-line method. The machine's useful life is estimated to be 8 years with a $4,000 salvage value. The book value of the machine at the end of year 2 is: Multiple Choice $4,750. $28,500. $38,000. $32,500. $9,500