Re: how much does it cost to have an account
There's no cost to have an account. You pay for your clicks when you open an account and start a new campaign.
The costs per click vary so much from one market to another and depending on how much you're willing to pay that it's impossible to answer that question.
AdWords works on an auction system. It's free to enter the auction, like any other auction, but if you place a bid and you win, you have to pay.
Have a watch of these videos: