The graph above shows the graphs of the cost (in green) and revenue (in red) functions for a company that manufactures and sells small radios.

a) How many radios must be produced and sold to break even?
Answer:

b) What is the dollar amount coming in and going out if the company just breaks even?
Answer:

c) Use the formulas to write the company's profit function, $P(x)$, from producing and selling $x$ radios.
(NOTE: Profit = Revenue - Cost)
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d) How much profit will the company earn if it produces and sells 450 radios?
Answer: