High School Math Made Understandable Book 3: Math 9, 10, 11, and 12, covers most of the material and concepts that is covered throughout High School. High School Math Made Understandable Book 3 assumes you know nothing about Algebra, and starts by helping you build a foundation of basic Algebra skills, before moving on to more complex topics that will prove useful throughout High School. It covers the following topics: Algebra(Intro), Trigonometry(Intro), Geometry, Radicals and Exponents, Linear Equations and Functions, Trigonometry, Quadratic Functions, Quadratic Equations, Radical Expressions, Rational Expressions, Absolute Value and Reciprocal Functions, Linear and Quadratic Inequalities, Transformations of Functions, Radical and Rational Functions, Polynomials, Exponents and Logarithms, Circular Functions, Trigonometric Equations and Identities, and it also includes a brief bonus chapter on Interval notation. What makes this book unique is that the answers at the back of the book have the full solutions as well, so if you got the wrong answer, you will know where you went wrong!