Education in ancient<span> Rome progressed from an informal, familial system of education in the early Republic to a tuition-based system during the </span>late<span>Republic and the Empire. The Roman education system was based on the Greek system – and many of the private tutors in the Roman system were Greek slaves or freedmen.</span>
A, 20.
The vigesimal numbering system, or base-20 numeral system, is based on the number twenty. Twenty individual numerals/digits are used, ten more than in the usual decimal system.
