Question: Autographs

what if "w" is in decimal that is fraction or "W" is negative, so shouldnt we say cant determine the relationship?

Another way of doing rates is similar to how we use it in Chemistry.

84 sec/ 35 autographs * (200 autographs) * 1 min / 60 seconds. This will help people keep maintain their units in an easier fashion. You're teaching the exact same thing, I just thought this would be good to mention.

I really appreciate all of your work on these videos as they have helped me avoid traps.