Authorities are accusing a math teacher in Bergen County of having sex with a female student.Joseph Greco is held on $100,000 bail, charged with sexual assault and endangering the welfare of a child.

County Prosecutor John Molinelli says the girl told investigators she and the 27-year-old had sex between 2010 and 2011 when she was a junior and senior at Park Ridge High School.

Greco has been suspended from the school. It's not clear whether he has an attorney.

(Copyright 2012 by The Associated Press.  All Rights Reserved.)

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