As you can see by the photo this is all part of one question thank you for your help in advance

a$.$ Did the reduction in debt costs reduce the firm's weighted average cost of capital? How would you describe the impact of international diversification on its costs of capital?

b$.$ Adding the hypothetical risk premium to the cost of equity $($an added $3\mathrm{.}1\%$ to the cost of equity because of international diversification$),$ what is the firm's WACC?

a$.$ Without the hypothetical additional risk premium, what is Genedak$-$Hogan's cost of equity before international diversification of its operations?

$($Round to two decimal places.$)$

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