Answer: The unobservable market force that helps the demand and supply of goods in a free market to reach equilibrium automatically is the invisible hand. ... He assumed that an economy can work well in a free market scenario where everyone will work for his/her own interest.
Explanation:
 
        
             
        
        
        
Answer:
Currency? 
Explanation:
This question is very confusing. I hope this is the answer you're looking for!
 
        
             
        
        
        
Answer:
The Connecticut Compromise.
Explanation:
The Connecticut Compromise was an agreement made during the discussions for the approval of the Constitution in 1787, whereby the most and least populated states of the nation agreed on the way in which to organize the United States Congress without any of the these groups of states have an unfair advantage over the other. Thus, a bicameral Congress was organized, with a chamber organized in an egalitarian manner (the Senate) and another in proportion to the population of each state (the House).
 
        
             
        
        
        
1. Motion of the planets
2. An ellipse