This is a great study guide for anyone taking Algebra or Trigonometry. It contains Vocabulary and Operations of Algebra, Properties of Real Numbers, Linear Open Sentences, Functions and Polynomials, Factoring Polynomials, Rational Expressions, Radicals and Irrational Numbers, Quadratic Equations and Functions, Quadratic Relations and Systems, Exponential Functions and Logarithms, Sequences and Series, Permutations, Combinations, and Probability, Matrices, Trigonometry, Trigonometric Identities and Formulas, Circular Functions and their Inverses.