Andrew Carnegie created a monopoly in what industry?

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 is the southernmost fort in what is today western ohio? what city is there today

How does the power of the supreme court act as a check on the other branches of government