Question

Data from the registrar's office at gigantic state university indicate that over the past 20 years tuition and enrollment have both increased. From this information we can conclude that

Answer 1

I believe the answer is :the supply of education provided by GSU has also increased over the twenty-year period.

The increase in supply of education give more value to what the students pay for in the university. This make the increase in price seems worth it considering the additional benefit that the students get in current day enrolment compared to what they get in the past.