Shows how to calculate discount, markup, and sales tax.

Sorry for the AI voice. I have to make many of these, and audio production and captioning is the bottleneck.

Problem from OpenStax Contemporary Mathematics by Donna Kirk. Access for free at https://openstax.org/books/contemporary-mathematics/pages/1-introduction https://openstax.org/books/contemporary-mathematics/pages/6-2-discounts-markups-and-sales-tax

You can find all my course materials at my github page: https://prof-sears.github.io