Math Quiz — NYT Learning Network

Through Math for America, I am part of an ongoing collaboration with the New York Times Learning Network. My latest contribution, a Test Yourself quiz-question, can be found here

Test Yourself Math — July 15, 2013

This question is about Oregon’s proposed college financing plan that would allow students to attend college tuition-free in exchange for a small percentage of their future yearly earnings.  How much might an average graduate pay under this proposal?