9. Jensen Company purchased a new machine on September 1, 2016, at a cost of $128,000. The company estimated that the machine has a salvage value of $8,000. The machine is expected to be used for 80,000 working hours during its 8-year life. Instructions Compute depreciation using the following methods in the year indicated. (a) Straight-line for 2015 and 2016, assuming a December 31 year-end. (b) Declining balance using double the straight-line rate for 2016 and 2017 (c) Units-of-activity for 2015, assuming machine usage was 2,900 hours. (Round depreciation per unit to the nearest cent.)