with written steps please, thanks!

(a) What is market risk? Calculate the fall in value in a $8 million parcel of 60 -day money market securities when the money market yield rises unexpectedly from 5.6% to 5.85%. [10 marks] (b) The Australian Government has issued some 12% Treasury bonds with a maturity of five years and a face value of $100. If an investor's required rate of return is 9% p.a., what price would the investor be willing to pay for these bonds assuming coupons are paid semi-annually