Current Attempt in Progress Linda Williams owns and operates Cullumber, a bakery that creates personalized birthday cakes for a child's first birthday. The cakes, which sell for $60 and feature an edible picture of the child, are shipped throughout the country. A typical month's results are as follows: Sales revenue $984,000 Variable expenses 541,200 Contribution margin 442,800 Fixed expenses 232,200 Operating income $ 210,600 (a) What is Cullumber's contribution margin per unit? Contribution margin per unit $ per cake eTextbook and Media(b) What is Cullumber's monthly breakeven point in units? Breakeven point cakes eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer (c) What is Cullumber's contribution margin ratio? Contribution margin ratio eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer . (d). What is Cullumber's monthly breakeven point in sales dollars? Breakeven sales $