i work for pizza hut, my pay was dropped from 7.65 an hr to 5 an hr without telling me since 4/17/2012.

As a general matter, an employer may change the terms of your employment at any time. This is the essence of the "at will" doctrine of employment in the United States. If you remain employed and accept your reduced pay without objection, you are deemed to have accepted the new terms. It seems unlikely that you have suffered this pay reduction for three weeks without any notice. You may have a claim if you received a retroactive pay reduction without any notice. You can complain to your state labor department.