7. Copper Mines, Inc (CMI) . purchased property for the purpose of extracting copper ore. CMl paid $3,500,000 for the property plus $100,000 closing costs. CMl estimates it will be able to extract 800,000 tons of copper ore from the property over the next 10 years. The actual number of tons of copper ore extracted during the next ten years are as follows: 95,000 tons each in years 1,2,3; 80,000 tons each of years 4,5,6&7; and 75,000 tons each of years 8,9,& 10. It is believed that after 10 years the extractable ore will have been removed and the land will be useful for cattle grazing with an estimated value of $200,000. What is the amount of expense related to the ore extraction to be recognized for year 8? a) b) c) d) e) 318,750 330,000 340,000 350,000 360,000