Interactive Video SKillbuilder CD for Precalculus: A Problems-Oriented Approach Sixth Edition Version 2 (Cohen/Lee/Sklar's)
CD taken from Precalculus: A Problem-s Oriented Approach
Video lessons, skill builders, and section quizzes. Some helpful tools to help you learn pre-calculus. This should come with the book but if you didn't get it for whatever reason, here it is.
Note that THIS IS NOT an ebook. However, most of the book is available at the URL below: