This is 15 of ~171 Algebra 2 Lectures available. Each Lesson consists of the following 3 items. 1) Lecture Notes w/Examples 2) Worksheet to practice (can be used as Homework or Quiz) 3) KEY for Worksheet with full solutions, step-by-step What does Lesson 15 cover? In this lesson, we will learn how to solve basic word problems that involve one variable. We’ll go over how to find the percentage of a number. Percent change will be introduced, where a quantity either increases or decrease