I am having trouble with this question. A BBB$-$rated corporate bond has a yield to maturity of $10\mathrm{.}0\%.$ A U$.$S Treasury security has a yield to maturity of $8\mathrm{.}5\%.$ These yields are quoted as APRs with semiannual compounding. Both bonds pay semi$-$annual coupons at a rate of $9\mathrm{.}3\%$ and have $5$ years to maturity.

a$.$ What is the price $($expressed as a percentage of the face value$)$ of the Treasury bond?

b$.$ What is the price $($expressed as a percentage of the face value$)$ of the BBB$-$rated corporate bond?

c$.$ What is the credit spread on the BBB bonds? Round to $3$ decimal places