A cereal manufacturer ships a crate of 14 small boxes and 15 big boxes weighing a total of 303 ounces. It then ships a smaller crate with 8 small boxes and 10 big boxes weighing a total of 191 ounces. The weights of the crates can be modeled by this system of equations.
14s + 15b = 303
8s + 10b = 191
What is the weight of the big cereal box, in ounces?