Blue Bull, Inc., has a target debt-equity ratio of .87. Its WACC is 8.6 percent, and the tax rate is 30 percent.

Required:
(a)	If the companys cost of equity is 12.7 percent, what is its pretax cost of debt?(Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).)

Pretax cost of debt

%

(b)	If the aftertax cost of debt is 5.3 percent, what is the cost of equity?