This all-in-one guide covers essential topics such as arithmetic, fractions, decimals, percentages, basic geometry, and introductory algebra. Zegarelli presents material in a straightforward, accessible manner with clear explanations, step-by-step solutions, and plenty of practice problems. The book also includes chapter quizzes online to test understanding and reinforce learning. This resource is ideal for high school students, adults returning to education, or anyone looking to build confidence in their math skills.