I have been asked to network for my company that has offices in different states what would be an wasy way to do this and how should I implement the internet into my plan, I have done networking before just not on different states.

I would hire a network integrator to do this for you. Setting up a WAN requires a specialized knowledge. How the WAN would be used, server setup, user authentication and much more go into the design of such. A network integrator will know the right questions to ask.

I have been asked to network for my company that has offices in different states what would be an wasy way to do this and how should I implement the internet into my plan, I have done networking before just not on different states.
The internet is "world wide"... as far as networking is concerned, there is little diff between network from home to local office or home to china.

Depending what you are trying to access, you need to research VPN or Remote destop.

P2E

An ISP can also facilitate this type of connections for companies to connect different network that are dispersed in different cities.