## What Are Variables?

Variables are used throughout Algebra, Geometry, and Calculus. Variables are therefore very important to understand.

Variables are used throughout Algebra, Geometry, and Calculus. Variables are therefore very important to understand.

Rational Function Graphs: There are different characteristics to look for when creating rational function graphs….

A percentage is a special ratio in which the second term of the ratio is always 100. By expressing a number as a percentage you are reflecting how many times it occurs in relation to 100 times.

Learning to work with ratios and proportions is one of the most useful things you can learn to do.

It is important to combine like terms so that you are dealing with the simplest form of the expression or equation.