Baker (unrestricted) example

A baker has 30 oz. of flour and 5 packages of yeast. Baking a loaf of bread requires 5 oz. of flour and 1 package of yeast. Each loaf of bread can be sold for $0.30. The baker may purchase additional flour at $0.04/oz. or sell leftover flour at the same price. Formulate and solve an LP to help the baker maximize profits.