n) You have been provided with the following information regarding the Ralston Manufacturing Company: Sales price Variable manufacturing cost per unit Fixed manufacturing costs per unit Variable marketing cost per unit Fixed administrative costs per unit 24 12 This information is based on forecasted sales of 30,000 units. Required: (a) What is the expected operating profit for the upcoming year? (b) What is the break-even point in units? (c) What is the margin of safety in units? (d) If $160,000 of operating profit is desired, how many units must be sold