Wordpress is a free to use site, so long as you're merely blogging on there, and using their free designs/widgets. There is a paid for hosting service though, with which you can host your own site.
No, there are no additional fees.
No it does not cost any money.
You haven't answered my question. What is your answer? Is this going to cost me any money, and how much?
Plugins for WordPress are simply tools which can be installed on this content management system with one click. If you are able attach a file to e-mail you can install a plugin. Further, the chief function of any plug-in is to add additional functionality to WordPress. I would go even further to say, WordPress wouldn't be as popular were it not for these tools. Think about a plug-in as the electric cord and WordPress as a lamp. The lamp is no good until it has electricity flowing to it. What illuminates the functionality of WordPress is the electric cord plugged into a socket.
No It doesn't cost any money. Its free.
It will not cost you any extra money but it will cost you some.
No I have an account and it hasn't cost me any money. Try it!
No it does not cost any money to join youtube and their are no hidden fees...
I am assuming the question is about how much you can earn from a Wordpress website, and the answer is as much as your hard work and resourcefulness can make you. Think of a Wordpress website like a shop in any town, except that you are not limited to people who walk past your shop, the internet means that anyone in the world can visit and buy from you. This is a whole complex subject. The best way I've found to make money from Wordpress is something called Bring The Fresh. More details in the related links below.
No it does not cost any money to call Debby Ryan.
No minecraft mods don't cost any money but it sometimes may be a project to get them.
no probation drug testing does not cost you any money at all