How did the state governments develop after the colonies gained independence?

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.

Which statement about spreading knowledge of diseases and health around the world is correct?

Which are components pf a political party? why do we need political parties give reason.