Please answer all parts of the question.

$3.$ M $=1000,$ coupon rate $=4\%($paid semi$-$annually$),$ n $=6$ years to maturity, r $=4\mathrm{.}5\%.$ The bond is convertible with a conversion ratio of $40.$

a$.$ Find the straight bond value.

b$.$ Find the conversion value if the price$/$share is $$22\mathrm{.}50.$

c$.$ Find the Intrinsic Value.

d$.$ What happens if the bond is selling for $$900?$