question in economy

Please answer each question:

How do the supply and demand curves help companies price their products?
How does the utility theory explain how a client makes a buying decisions?
Explain Gross Domestic Product. How could that be important to investors? How does a countries trade balance with other countries affect its financial markets?
Explain the basic business cycle. How does the business cycle affect our capital markets (as well as unemployment, recessions, fiscal and monetary policy)?
Explain how interest rates affect the term structure of the yield curve. For example, explain what a normal and inverted yield curve mean.
Discuss and explain how foreign exchange rates between two companies affect their buying decisions.