FIRST TUTORS, a UK-based online marketplace that matches tutors with learners for offline sessions, has been acquired by Varsity Tutors. Terms of the deal were not disclosed. Varsity Tutors, which facilitates online tutoring sessions, claims more than 30,000 experts on its platform. The company, based in St. Louis, has raised more than $57 million, the last coming in a $50 million Series B round in 2015. Buying First Tutors is a first step towards its broader global ambitions, suggests the press release.