American Airlines Business Cl?

I recently puchased a vacation to Punta Cana and I am flying out of New York. The aircraft is a Boeing 757. It says I am flying business cl..sitting in seat 4E and 4F. I went on the American Airline website to look at the plane seating and there is no first cl, it starts off as business. Does anyone know the amenities in business cl and do you know if I will be getting free food??