Read this article and then answer the following questions:
1. What is the main source of richness in America according to the article?
2. How much did the top 400 richest person make in 2007 and what is its equivalent in lei?
3. What is the trend regarding the American average income?
4. What are the best paid positions?
5. Listen to the presentation and express your opinion on secret habits of healthiest Americans?
6.What are the richest people in Romania according to statistics?
7. What business are they in?