1. Suppose company A expects to increase unit sales of i-phone by 15% per year for the next 5 years. If you currently sell 3 million i-phones in one year, how many phones do you expect to sell in 5 years?
2. The first comic book featuring Superman was sold in 1938. In 2010, the estimated price for this comic book in good condition was about $500,000. This represented a return of 25 percent per year. For this to be true, what must the comic book have sold for when new?