1) A medical add says it cures 200% of your illness. Is this add misleading and why?

2)You have placed $1400 dollars in the stock market. After a year's time the value is $2000. Find the percent of change. Round to the nearest percent if needed.

3)Amy wants to spend the summer in France after she graduates. She is worriedthat this will be too expensive because the dollar buys fewer francs now. When Amy entered college, a dollar was worth 7 francs. Now a dollar isworth 5.50 francs. By about what percent has the value of the dollar in francsdecreased. Round to the nearest percent.