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The Cost of Extracting T Tons of Ore from a Copper

question 6

Multiple Choice

The cost of extracting T tons of ore from a copper mine is The cost of extracting T tons of ore from a copper mine is   dollars. Would you expect   to be positive or negative? A) positive B) negative dollars. Would you expect The cost of extracting T tons of ore from a copper mine is   dollars. Would you expect   to be positive or negative? A) positive B) negative to be positive or negative?


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