A company produces a product for which the variable cost is $12.73 per unit and the fixed costs are $90,000. The product sells for $17.08. Let x be the number of units produced and sold. (a) The total cost for a business is the sum of the variable cost and the fixed costs. Write the total cost C as a function of the number of units produced. C = (b) Write the revenue R as a function of the number of units sold. R = (c) Write the profit P as a function of the number of units sold. (Note: P = R - C.) P =