A company purchased equipment system for $325,000 on January 2, 2004. The company expects the equipment to last eight years or 60,000 hours of operation, with as estimated salvage value of $25,000. During 2004 the equipment was in operations for 8,000 hours, while in 2005 the equipment was in operations for 8,700 hours. Compute the depreciation expense relating to the equipment for 2004 and 2005 using the following depreciation methods: a. straight-line. B. Double-declining ?balance. C. Units-of-production