Locate the Treasury bond in Figure $8\mathrm{.}5$ maturing in January $2027.$ Assume a par value of $$10,000.$

Figure $8\mathrm{.}5$:

Maturity Coupon Bid Asked Change Asked Yield

$1/31/20271\mathrm{.}5106\mathrm{.}282106\mathrm{.}286-0\mathrm{.}0020\mathrm{.}412$

Do not round intermediate calculations and enter answer rounded to $2$ decimal places

a$.$ What is its current yield?

b$.$ What is its yield to maturity?

c$.$ What is the bid$-$ask spread in dollars?