A state charges polluters an annual fee of $20 per ton for each ton of pollutant emitted into the atmosphere, up to a maximum of 3,000 tons. No fees are charged for emissions beyond the 3,000-ton limit (so, the fees is the same foe 3,000 and any value over 3,000 tons). Write a piecewise definition of the fees F(x) charged for the emission of x tons of pollutant in a year. (A) What is the limit of F(x) as x approaches 3,000 tons? Answer (A) : $ 60,000 (B) As x approaches 8,000 tons? Answer (B) : $ 60,000

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