Are there more countries with free market economy than with with commmand economy?

Did north or south korea forces advance further into the other’s territory?

Why was the sixteenth amendment important to woodrow wilson’s efforts to regulate the economy? a) the sixteenth amendment lowered interest rates charged by banks. b) the sixteenth amendment allowed congress to levy an income tax c) the sixteenth amendment lowered tariffs on imported goods d) the sixteenth amendment allowed congress to break up monopolies

What were some of the difficulties the new immigrants face once they came to america?