A firm will break even (no profit and no loss) as long as revenue just equals cost. The value of x (the number of items produced and sold) where C(x) = R(x) is the break-even point. Assume that each of the following can be expressed as a linear function. Find

(a) The cost function, 

(b) The revenue function, 

(c) The profit function.

(d) Find the break-even point and decide whether the product should be produced, given the restrictions on sales.

No more than 30 units can be sold.

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Fixed Cost Variable Cost Price of Item $ 180 $ 11 $ 20