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Homework answers / question archive / The cost in dollars of producing x skateboards is C(x)=900 18x+0

The cost in dollars of producing x skateboards is *C*(*x*)=900 18*x*+^{0.7} and the revenue from the sale of x skateboards is *R*(*x*)=75*x*^{0.8} .

- Find and simplify the expression for the average cost function.
- Find and simplify the expression for the average revenue function.
- Find and simplify the expression for the average profit function.
- Find the rate at which the average cost, average revenue and average profit per skateboard are changing when 20 skateboards have been built and sold.
- Display separate graphs over appropriate window scales for the average cost, average revenue and average profit functions.

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