Here is the site that i have been working on for these guys.
Under the ad search page and then under a certain category you will see a banner

I would like to know the rates of the web design community.

What would you charge to Do a banner of that size from scratch for these guys?
What would you charge to do maintainence of a site monthly for these guys?
Lastly What would your hourly fee be to do addons or updates for this site.

Just so you guys know, im only 17 so i have a lot to learn still. my experience is well out there, but i still have practically no idea what do do as in rates, fees, and additionaly costs.

Help with this is greatly appreciated THANK YOU