Stancorp has a $11.7 million debt issue​ outstanding, with a 6.1% coupon rate. The debt has​ semi-annual coupons, with t

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Stancorp has a $11.7 million debt issue​ outstanding, with a
6.1% coupon rate. The debt has​ semi-annual coupons, with the next
coupon is due in six months. The debt matures in five years. It is
currently priced at 96% of par value.
a. What is​ Stancorp's pre-tax cost of​ debt? Note: Compute the
effective annual return ​(Round to four decimal​ places.)
. b. If Stancorp faces a 30% tax​ rate, what is its​ after-tax
cost of​ debt?   ​(Round to four decimal​ places.)