1. This document provides mathematical formulae and relations that may be helpful in answering questions, including formulae for operations with exponents, fractions, probabilities, geometry, trigonometry, and calculus. 2. The formulae cover topics such as area of shapes, volume, mean, scale factors, relations, and Pythagorean theorem. Standard symbols are used. 3. Fourteen formulae for calculating areas, volumes, lengths, probabilities, and scale factors of shapes such as circles, spheres, cylinders, cones, pyramids, and trapezoids are presented.