http://chronicle.com/img/photos/biz/Ticker%20revised%20round%2045.gifBy Nick DeSantis. The Education Management Corporation has received inquiries from a dozen states about the company’s business practices, the for-profit-college company said on Friday in a corporate filing with the U.S. Securities and Exchange Commission. The office of the attorney general of Pennsylvania notified the company that it would serve as the point of contact for those inquiries, the company said. More...