Answer:
The Rhine and the Danube.
Explanation:
The rivers forming the north and east border of the Roman Empire are the Rhine and the Danube.
Most slaves lived on plantations, but the plantations were not very big: they rarely had more than 100 slaves. The best answer is then A. lived on plantations with 20 or more slaves.
What was the role of the House of Burgesses?
The Virginia House of Burgesses was the first democratically-elected legislative body in British North America. This group of representatives met from 1619 until 1776. The members, or burgesses, were elected from each county in Virginia with each county sending two burgesses.
I might be wrong but I believe it was Afghanistan...?