debt, whereas LL has a $20\%$ debt$-$to$-$capital ratio and pays only $9\%$ interest on its debt. Neither firm uses preferred stock in its capital structure.

a$.$ Calculate the return on invested capital $($ROIC$)$ for each firm. Round your answers to two decimal places.

ROIC for firm $LL$: $\%$

ROIC for firm $HL$: $\%$

b$.$ Calculate the return on equity $($ROE$)$ for each firm. Round your answers to two decimal places.

ROE for firm LL:

$\%$

ROE for firm HL:

$\%$

your answer to two decimal places.