The roman empire began in 27 b. c. and ended in 476 a. d. the persian empire lasted approximately 5/11 as long as the roman empire. based on this approximation, if the persian empire began in 550 bc, in what year did it end? round all years to the ak

Two of these describe "federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a "unitary" and a "confederate" system.