Investments in the stock market have increased at an average compound rate of about 5% since 1900.

Question:

Investments in the stock market have increased at an average compound rate of about 5% since 1900. It is now 2013.
a. If you invested $1,000 in the stock market in 1900, how much would that investment be worth today?
b. If your investment in 1900 has grown to $1 million, how much did you invest in 1900?