Negotiating international peace treaties
We will follow this strategy: we will find the value of x using a theorem about the sum of interior angles of any polygon, and then we will compute 2x to find A.
The theorem states that the sum of the interior angles of <em>any</em> polygon with 
sides is 
Your polygon has seven sides (so 
), and the sum of the interior angles is
So, using the theorem, we know that
.
Since 
and 
, we have 
The equilibrium is the price that comes out from adding all the direct related costs in producing the good or service. To this total you have to add the indirect costs, for example, taxes, salaries, etc. Add up both results and you will have the price.
The equilibrium price is the price that covers all your expenses, both direct and indirect. With this price you do not lose nor earn any money.
Many of those who helped account for the population growth of cities were immigrants arriving from around the world. A steady stream of people from rural America also migrated to the cities during this period. Between 1880 and 1890, almost 40 percent of the townships in the United States lost population because of migration. <span>uring the final years of the 1800s, industrial cities, with all the problems brought on by rapid population growth and lack of infrastructure to support the growth, occupied a special place in U.S. history. For all the problems, and there were many, the cities promoted a special bond between people and laid the foundation for the multiethnic, multicultural society that we cherish today.
Info from: http://www.loc.gov/teachers/classroommaterials/presentationsandactivities/presentations/timeline/ris...
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