At Brantley's Bakery, a batch of cookies requires 2 cups of flour and 60 minutes to bake. A cake requires 3 cups of flour and 45 minutes to bake. Brantley has budgeted for 30 cups of flour per day. He
can bake for up to 9 hours per day. Brantley makes the same amount of profit when he sells a batch of
cookies as he does when he sells a cake. How many batches of cookies and how many cakes should
Brantley make each day to maximize his profit?

1. Variables; x=? y=?
2. Constraint:?
3. Determine the vertices of the feasible region.