TB MC Qu. 08-176 (Algo) Martin Company purchases a machine at... Martin Company purchases a machine at the beginning of the year at a cost of $85,000. The machine is depreciated using the double-decliningbalance method. The machine's useful life is estimated to be 4 years with a $7,000 salvage value. The machine's book value at the end of year 3 is: Multiple Choice $42,500. $63,750. $74,375. $10,625. $9,719