1. Gavi is a high school student in Beachwood, Ohio. He will be going to college next year and is planning to visit the following campuses: Tulane University, Syracuse University, Emory University, City University of New York, Tufts University, DePaul University, and the University of Florida.

a. In how many different ways can he visit each of these schools and return to his starting point in Beachwood, Ohio?