1. A company sells its products at $25 per unit. The fixed cost is $18000 and the cost per unit is $15. Find the level of production to break even. Find the break-even point. 2. A manufacturer sells 15 units of a product for $225. The fixed costs related to this product are $750 per month and the total costs of producing 100 units are $1750. How many units must be sold to guarantee no loss? 3. The total cost of producing 20 units of a product is $1880 and the cost of producing 25 units is $1950. The total revenue of selling 120 units of the same product is $2160. Assume linear cost and revenue models. a. Find the cost and revenue functions. Write the profit function. b. Find the profit (or loss) when 200 units are produced and sold. c. Find the profit (or loss) when 400 units are produced and sold. d. Find the break-even point