For a particular business, the cost of producing one item is $2 and the company has fixed costs of $150, so their
total costs for producing x items can be represented by C = 2x + 150. They sell each of these items for $5, so
their revenue for x items can be represented by R = 5x. Find an expression that represents their profit for
selling x items. Simplify your answer. (Hint: Remember that Profit is Revenue minus Cost.)