You Have Been Provided with the Following Information Regarding the Ralston

You have been provided with the following information regarding the Ralston Manufacturing Company:
$\begin{array}{c}\begin{array}{|l|}\hline \text {Sales price}\\\hline \text {Variable manufacturing cost }\\\text {per unit}\\\hline \text {Fixed manutacturing costs }\\\text {per unit}\\\hline \text {Variable marketing cost per}\\\text { unit}\\\hline \text {Fixed administrative costs }\\\text {per unit}\\\hline\end{array}\begin{array}{r|}\hline \$50\\\hline \\24\\\hline \\12\\\hline \\6\\\hline \\3\\\hline \end{array}\end{array}$
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)If $160,000 of operating profit is desired,how many units must be sold?