parts a b and c please

5/457023/quizzes/secured#lockdown Smith Company distributes a single product. The company's sales and expenses for last month follow: Sales Total Per Unit $608,000 $ 40 425,600 28 Variable expenses Contribution margin 182,400 $ 12 Fixed expenses 151.200 Net operating income $ 31,200 equired: What is the monthly break-even point in unit sales and in dollar sales? Compute the contribution margin at the break-even point. How many units would have to be sold each month to earn a target profit of $57.6002 OU MUST SHOW YOUR WORK TO EARN CREDIT