9. On July 16, 2011, the stock of Amazon closed at $192.51 per share. On January 22, 2021 the stock closed at $3,292.23 on a split adjusted basis (which means that both numbers have been adjusted for any stock splits that occurred in the meantime). 1. What was the compound annual growth rate of the stock of Amazon (excluding dividends) over that period? Show all work for full credit. 2. Using the Rule of 72 and the growth rate calculated in (1), about how long does the Rule of 72 suggest it will take for the stock of Amazon to double in price