Estados Unidos tiene una economía de mercado en el cada persona toma decisiones sobre que fábricar vender y comprar

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

ghana achieved independence peacefully, while algeria gained independence through an armed struggle.

the government closely monitored its finances to avoid another financial collapse.

i think that the right answer is the aztecs