(adsbygoogle = window.adsbygoogle || []).push({}); I currently have 5 classes right now. I haven't prestiged yet and I don't plan on doing so.
If I buy the "extra create a class slots" will I get 10 classes per slot or just 5?

You will still have the 5, but slots 11-60 will be available. Slots 6-10 will be locked until you reach prestige 5.