Colorado Coal Company has estimated the costs of debt and equity capital $($with bankruptcy and agency costs$)$ for various proportions of debt in its capital structure. The company's income tax rate is $40$ percent.

a$.$ Fill in the missing entries in the table. Round your answers to two decimal places.

$\backslash$table$[[\backslash$table$[[$Debt ratio$],[\frac{B}{B}+E$