i have the world record for Most coins so I had 999,999,999 coins
Well, since the game is free and you earn them within the game, yes you can. But you have to build houses and shops in order to get them, you can't just get them from somewhere else of have friends present you with them (unless they are willing to present you with a paysafecard or something and have you use it to buy CityVille Cash which you can then turn into CityVille Coins...). Sorry...
I have a friend that is level 99, but the last i heard is that level 90 is the highest. I am at level 109 on cityville with 60,000,000 coins. my energy cap is at 58.
There are no cheats in Cityville - at least not ones where you press a button and you will level up, have a ton of coins etc... Your best bet is to get a guide that will help you like the one you will find in the related links.
Yes, you can purchase them for 100 coins under the "Farming" tab in the "Building" menu.
I've got 83 CityVille coins for 7,96 Euro, so 10 is more than enough in your case. You can spend the rest of the money later.
There are no cheats for CityVille, look up CityVille glitches though.
CityVille happened in 2010.
cityville
CityVille Hometown was created in 2011.
CityVille Hometown happened in 2011.
CityVille was created on 2010-12-02.
Click on the Add Coins and Cash tab in Cityville, select the package you want to buy then when you're asked to select your payment option, there's a check box that says "Apply existing balance". Just tick it and it will be applied to your purchase!