Roy makes so much money in his private tutoring business that all of his classmates start their own tutoring businesses. what is the effect of competition on the market for tutoring?

I would think that the extra competition in tutoring would result in the tutors charging less than before to try to compete with other tutors and to try to attract students who need tutoring and also the tutors would probably advertise their good record with past students to differentiate themselves from poorer quality tutors ...