What are the answers to CES basic course?

Boris Yeltsin introduced the policy of perestroika to restructure the soviet government and economy in the 1980s true or false? When quantity demanded is greater than quantity supplied the price will? What is three reasons eastern luxuries were expensive? What are the role of prices in a market and include distribution producers and consumers? Why are the prices of gold increasing? Why are 2009 pennies worth more than 2010 pennies? You like a particular product and recommend it to a friend. This is an example of which of the following? Describe how the necessity of a good and the availability of substitutions impact price elasticity? What will the future hold? How much is used gold worth? How do the monetary policies made by the Federal Reserve System's Board of Governors affect the economy? What are recent development in mathematics? Economic crisis that precipitated an economic depression and doomed the presidency of Martin van Buren? Average 25 year old income? What are the differences between economic development and financial system? Which area became extremely important for trade after it opened in the early 1900s? What is an example of a corporation? What is the main features of a developing country? How do tsunamis affect the economic status of the countries they strike? What are characteristics of quality cost?