Chapter 1: The Language of Algebra
Page 25 Savings & Checking Rates

Chapter 1: The Language of Algebra
Page 42 Yahoo! Weather Forecast

Chapter 2: Integers
Page 52 NOAA's Drought Information Center

Chapter 3: Addition and Subtraction Equations
Page 127 Lighthouses

Chapter 4: Multiplication and Division Equations
Page 151 Ignition Key Security Features

Chapter 5: Proportional Reasoning and Probability
Page 193 College Search

Chapter 6: Functions and Graphs
Page 240 U.S. Population Statistics

Chapter 7: Linear Equations
Page 295 U.S. Population Distribution

Chapter 8: Powers and Roots
Page 361 Elementary and Secondary School Enrollment

Chapter 9: Polynomials
Page 404 Kids Take on Breakfast

Chapter 10: Factoring
Page 420 The Largest Known Prime by Year: A Brief History

Chapter 11: Quadratic and Exponential Functions
Page 465 GIF Animation Instructions

Chapter 12: Inequalities
Page 512 Computer Shopper

Chapter 13: Systems of Equations and Inequalities
Page 583 The What and Why of Wind

Chapter 14: Radical Expressions
Page 614 The National Softball Association

Chapter 14: Radical Expressions
Page 627 Roller Coaster Database

Chapter 15: Rational Expressions and Equations
Page 671 National Weather Service Hydrologic Information Center