Using Khan Academy to prep for College Algebra CLEP?

[charismo]

you purchased it

the OP did not

I know there is the old "software piracy" argument of "I bought so I own it and can with it what I want" and "it's not stealing because no 'physical' item is actually taken"
but you are robbing the company of $20

you can't buy a pdf or video or ebook and then post it here

Are you trying to say if I buy a pdf from a website and my brother wants the same pdf I brought I should tell him to purchase that pdf from the website because the company is going to lose their ten dollars? Tell me if you were in my position you would do the same.