Sam's family went to the pizza parlor for dinner. they started with 4 pizzas. sam's parents ate 1/2 pizza. sam and his brother ate 2 1/3 pizza's, while his sisters ate 1/2 of a pizza. how much pizza was left?

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