Exco purchases equipment costing s250,000 with a 10 year life and a sulvage value of $25,000. Itells the equipment at the end of year 8 for $90,000. If Exco uses straight line depreciation, the before tax gain (loss) is closest to: (5 Pts) 7. a. $20,000 b. $45,000 e. $22.500 d. $5,000 e. $10,000 2