Question 8 (10 points) Machinery is purchased on July 1 of the curretit fiscal year for S240,000. It is expected to have a neful lide aften or 25,000 operating hours, and a residual value of $15,000. Compute the depreciation for the last six months af te current fiscal year ending December 31 by each of the following methods. (a) straight-line (b) double-declining-balarice (c) units-of-output (used for 1.600 hours during the current year)