Emma Jones is a young entrepreneur who recently used "GMAT Success", a test-prep book and software package for the business school admission test. Emma loved the book and program so much that after graduating she signed a contract with GMAT Success's publisher to sell the learning materials. She recently sold them at a college fair in Boston and is now thinking of selling them at a college fair in Chicago. Emma can purchase each package (book and software) from the publisher for $120 per package, with the privilege of returning all unsold packages and receiving a full $120 refund per package. Selling price is 200$. She must pay $2,000 to rent a booth at the fair. She will incur no other costs. Should she rent the booth or not?