A company's stock price rose 20.5% in 2004, but dropped 1.5% in 2005:
a. Compute the geometric mean rate of increase for the two year period 2004-2005. (denote a decrease of 1.5% by -.015)
b. If someoen purchased $1,000 of th ecompany's stock at the start of 2004, what was its value at the end of 2005?
c. In 2006, the companys stock increase by 6.7%. compute that geometric mean rate of increase for the three-year period 2004-2006?