IF-658 - Includes basic algebraic information as well as formulas for solving common algebraic equations, including general, linear, SOH-CAH-TOA, exponents, factoring, perimeter, area, and others. Students can keep all the facts right at their fingertips with this colorful two-sided ready reference card! Comes pre-punched for a three-ring binder and is laminated for years of use. 8 1/2" x 11" (22 x 28cm).