Answer:
Sales people hear these questions often, and although many of us love mathematics for its logic and elegance alone, other people are more interested in functionality than in aesthetics. The aim of this article is to show some applications of mathematics and point you to some sources where you can find more, which may help you answer the questions above so that others will appreciate mathematics. We can't necessarily make mathematics easy for everyone, but when people know that it is useful, indeed ubiquitous, with extremely contemporary uses, then they may appreciate mathematics as much as we do.
