Use the following information to answer questions 17-19.

The Tully family and the Quan family ate dinner together at Eugenio's Pasta Restaurant. An order of pasta comes in 1 of 2 sizes, large or small, and consists of 1 of 6 types of pasta and 1 of 5 types of sauce. The table below gives the number of large and small orders of pasta bought by each family, and the price each family paid for their orders of pasta (without tax and tip).