The Following Questions Refer to the graph below. 
-The socially optimal years of education is
Definitions:
Iroquois
A historically powerful and influential group of Native American tribes in the northeastern United States, known for their sophisticated political system and the Iroquois Confederacy.
Centralized Authority
A system where decision-making and power are concentrated in a central group or location.
Wars
Armed conflicts between states, societies, or groups, characterized by the use of force to achieve political or social objectives.
Q5: Some would argue that one of the
Q9: In a mixed economy,markets adjust freely and
Q13: When professional sports leagues seek to achieve
Q33: Income support programs have<br>A)Had no effect in
Q33: Which of the following factors helps professional
Q46: Profits are more equally distributed in a
Q71: Critics have argued that the official definition
Q78: In 1996,the Personal Responsibility and Work Opportunity
Q82: The record-breaking economic expansion in the 1990s<br>A)Reduced
Q104: Which of the following is a government