According to Rousseau, how do people know about the “clauses” (part) of the social contract?

Who introduced arabic numerals to italy, which make bookkeeping possible? a. brunelleschi b. cosimo de medici c. fibonacci d. gregory xi e. giovanni de bicci de medici

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.

Which concept is plato expressing in the excerpt below? when men have both done and suffered tyranny, and have had experience of both . . they think that they had better agree among themselves to have neither. . —plato, the republic: book ii