How does the Fortnite Battle Pass work?

So I want to know if you can earn all levels of the Battle Pass for 950 V-Bucks or if you have to pay more. And if not to which level goes the 950 V-Bucks Battle pass.

You pay the 950 V-Bucks. Then you get tasks that come weekly new. If you fulfill these you can reach a higher Battle-Pass level. Each Battlepass goes up to level 100. The only difference to the more expensive is that if you buy it, you will go up 25 levels directly

Yes, you can earn everything with 950 VBucks

For 2,800 VBucks you get a 25-step advantage