Use the table to answer the question.

Question

Number of Cases Ordered-Number of Rolls of Paper Towels
1-12
3-36
5-60
10-120
A restaurant is placing an order for paper towels. The data tale shows the number of paper towel rolls compared to the number of cases. At which ratio in the data table does the constant of proportionality appear? Write your answer as an ordered pair.

Answer 1

The constant of proportionality appears at the ratio of 12 rolls per case. So the answer is (1, 12).