{ANSWER THIS QUESTION} Suppose in the grad school question (BELOW), the tuition obligations have a Macaulay duration of 5.57 in years and a present value of 40,978. In order to immunize the tuition payments by investing in some combination of two bonds with duration 2.07 and 8.71, what is the dollar amount that you should invest in the bond with duration 8.71?

Assume annual compounding. Round your answer to 2 decimal places.

--Suppose you will go to graduate school for 4 years beginning in year 4. Tuition is $34,411 per year, due at the end of each school year. What is the Macaulay duration (in years) of your grad school tuitions? Assume a flat yield curve of 0.05.

Assume annual compounding. In the above description, if you see a flat yield curve of 0.08 for example, then it means that the yield at all maturities is 8%.