17) Sokolsky Excavating purchased a used dump truck for $90,000 on January 1, 2018. The company has depreciated the dump truck using the straight-line method over its estimated 10-year life with a $6,00 residual value. Sokolsky sold the dump truck on January 1, 2021. for $68,700. Total accumulated depreciation on the dump truck on the date of sale was $25,200. What gain or loss should be recorded on the sale? 5.55 Points A loss of $21,300 Aloss of $3,900 A gain of $3,900 A gain of $21,300 18) Barron Fuel purchase an oil weil for $200,000. The well is estimated to contain 50,000 barrels, have an eight-year life, and have no residual value. If the company extracts and sells 2,000 barrels of oil in the first year, how much in cost of sales should be recorded? 5.65 Points $20,000 $100,000 $8,000 $25,000