Civics What percentage of state legislatures must ratify a proposed amendment before it is added
to the Constitution?

seventy-five percent

sixty-six percent

eighty percent

fifty percent

75%

Explanation:

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation: