Contents: The Real number system and geometry -- Variables and exponents -- Linear equations and inequalities -- Linear equations in two variables -- Solving systems of linear equations -- Polynomials -- Factoring polynomials -- Rational expressions -- Absolute value equations and inequalities and more on solving systems -- Radicals and rational exponents -- Quadratic equations -- Functions and their graphs -- Inverse, exponential, and logarithmic functions -- Conic sections, nonlinear inequalities, and nonlinear systems -- Sequences and series.