Rollins Corporation is estimating its WACC. It’s current and target capital structure is 40 percent debt and 60 percent common equity. Its bonds have a 12 percent coupon, paid semiannually, a current maturity of 20 years, and sell for $1,040. Rollins' beta is 1.2, and the risk-free rate is 10 percent. Rollins is a constant-growth firm which just paid a dividend of $2.00. Its stock sells for $27.00 per share, and has a growth rate of 8 percent. The firm's marginal tax rate is 40 percent.
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What is Rollins' cost of debt (also known as YTM, rd, or kd)?