Some questions regarding the domains.

Okay , so I had some questions in my mind regarding the forum domains.

1. How many credits are required for a domain?

2. What's the period of time it'll stay for? (For a year or a month..etc)

3. In general how much money's required for a year's domain? in US Dollars.

I'd really love it if you could answer it in general , instead of giving me the link.
Thanks in advance

1) 1600 credits
2) One year
3)around 17-18 for 1600. But you can buy, 2000 credits which will be a bit higher.

How much do 2000 cost?

Just check in your admin panel to buy credits.