13-7 Solo Country Club purchased a new computer system on October 1, 2008, at a cost of $96,000. The company estimated that the machine would have a salvage value of $12,000. The system is expected to be used for 10,000 working hours during its five-year life. Instructions Compute the depreciation expense under the following methods for the year indicated: (a) Straight-line for 2008. (b) Units-of activity for 2008, assuming system usasge was 1,700 hours. (c) Declining-balance using double the straight-line rate for 2008 and 2009.