This lesson covers two topics: square root of a number and percent. A square root of a number is a number that has been squared to get the number under the square root. For example, the square root of 4 is 2, because 2 x 2 = 4. We have already discussed the concept of percent in our previous lessons, however, since it is a very commonly used concept, we will go over it again in more detail. In this lesson students will learn the general formula for finding the percent of a number. We will go ov