Exercise 3-7 (Part Level Submission) Julianna Abdallah owns and operates FirstCakes, a bakery that creates personalized birthday cakes for a child's first birthday. The cakes, which sell for $64 and feature an edible picture of the child, are shipped throughout the country. A typical month's results are as follows: Sales revenue $1,121,280 840,960 280,320 134,720 Variable expenses Contribution margin Fixed expenses Operating income 145,600 (a) How many cakes will Julianna Abdallah have to sell if she wants to earn $179,392 in operating income each month? cakes LINK TO TEXT LINK TO VIDEO