Barbara Jones owns and operates IvanhoeCakes, a bakery that creates personalized birthday cakes for a child's first birthday. The cakes, which sell for $10 and feature an edible picture of the child, are shipped throughout the country. A typical months results are as follows: Sales revenue Variable expenses Contribution margin Fixed expenses Operating income $772,000 579,000 193,000 106,500 $ 86,500 (a) X Your answer is incorrect How many cakes will Barbara Jones have to sell if she wants to earn $138,000 in operating income each month? 6112.50 cakes B Type here to search O DI E 7 g