Solve for the Weighted Average Cost of Capital $\begin{aligned}13.60 \% &=K_{1} \\3 / 4 &=\lambda \\8.0 \% &=i \\40.0 \% 0 &=\tau\end{aligned}$

Solve for the weighted average cost of capital. $\begin{aligned}13.60 \% &=K_{1} \\3 / 4 &=\lambda \\8.0 \% &=i \\40.0 \% 0 &=\tau\end{aligned}$

A) 7.00 percent
B) 6.89 percent
C) 6.73 percent
D) 6.67 percent