Did the colonist come to America for their own free will

Which best describes the idea behind the "invisible hand"? producers decide what to make for consumers, which guides the economy. individuals seeking their own self interest benefit the economy as a whole. government sets policy for producers and consumers, which guides the economy. consumers decide what they need and want to buy, which guides the economy.

What greek scientist created a screw to move water for irrigation?

The federal crescent is shaped like what letter