Math World is part of a secondary math textbook series that focuses on the core content areas in the K-12 Curriculum. Each book progressively guides the students in mastering the fundamental mathematical tools that develop logical thinking, leading to greater success in higher-level math. Each chapter of this book opens with a presentation of a real-life application of concepts discussed in the chapter. At the end of the chapter, aword problem in the context of such application is presented to help you gain an appreciation of the practical uses of the knowledge and skills that you have learned.