Go to www.cengagebrain.com, enter the ISBN 9781285428932, and click on “Find” to locate this textbook’s Web site. Then, click on “Access Now” under “Study Tools,” and select Chapter 4 at the top. There, you will find a Practice Quiz that you can take to assess your mastery of the concepts in this chapter, as well as Flashcards and a Glossary of important terms.