Discuss one topic from algebra you used in completing exercises from this section.

may I have help with this please

In this chapter, you were required to use many skills from algebra.  

1. Discuss one topic from algebra you used in completing exercises from this section. 
2. Give an example of a business calculus exercise that required the algebra topic from (1).
3. Respond to a classmate's original posting explaining the reason for your agreement or disagreement or why you think the post is important.