Yes it will. The only thing that you have to keep in mind is that in Angola the power is 220V so U'll need a power brick with 220v. Or U can buy a power converter to convert 220v to 110v.
set your location in us and buy your live from us.
They are the same Xbox, just in different countries.
Yes, it does.
No. they will not work. Some xbox games will work on Xbox 360 but not vice versa.
Yes. However, you will need to import all your games from the US, seems the Xbox 360 is reigon-locked.
yes it should do
Yes, all U.S. games work on every Xbox 360 console no matter what country it is in.
http://www.xbox.com/en-US/games/backwardcompatibilitygameslist.htm That's a list of games that will work on 360. If yours isn't on the list, it only works on the original xbox.
Some Xbox games will work in your 360.Here is a list from Xbox.com http://marketplace.xbox.com/en-US/games/catalog.aspx?d=5
Yes , it will work perfect
NO most games are made for a specific region code
If you bought an xbox 360 game anywhere, it can play on any xbox. If You buy a game from somewhere that uses PAL ( it says if it is PAL on the top of the xbox 360 case ) then it will work on an xbox 360 from Europe. But if you buy a game from somewhere like USA, then it will not work as they use something else :)