Problem 3 (8 points) The Tree Line Inn has purchased a shuttle bus to transport guests to and from a local ski lodge. The cost of the bus is $40,000; its salvage value is S4,000; and its life is five years with expected usable mileage of 100,000 1. Straight-line 2. Units of production, assuming the bus traveled 15,000 miles in year 1 3. Sum-of-the-years' digits 4. Double declining balance