In anticipation of the immense college expenses, Joe and Jill started an annual investment

program on their child's cighth birthday that will last until the eighteenth birthday. They

plan to invest the following amounts at the beginning of each year:

To avoid unpleasant surprises, thcy want to invest the money safely in the following

options: Insured savings with $7\mathrm{.}5\%$ annual yield, $6-$year government bonds that yield

$7\mathrm{.}9\%$ and have a current market price equal to $98\%$ of face value, and $9-$year municipal

bonds yielding $8\mathrm{.}5\%$ and having a current market price of $1\mathrm{.}02$ of face value. How should

the moncy be invested?