Q1) For each of given $1000parvalue bond, suppose annual interest payment and 40% tax rate, compute aftertax cost to maturity by using approximation formula.
Bond

Life

Underwriting fee

Discount () or Premium (+)

Coupon interest rate

A

20years

$25

$20

9%

B

16

40

+10

10%

C

15

30

15

12%

D

25

15

Par

9

E

22

20

60

11
