Calculate the cost of equity, cost of debt, and WACC, respectively, of the project

Kelvin in South Africa on Exhibit $7$a$.$ Assume that sovereign risk measures and

idiosyncratic risk measures are uncorrelated. $(20\%$; Cost of equity: $5\%,$ cost of

debt: $5\%,$ WACC: $10\%)$

Tax Rate $25\mathrm{.}0\%$

Debt to Cap. $32\mathrm{.}9\%$

EBIT Coverage $2\mathrm{.}5$x

Default Spread $4\mathrm{.}34\%$

Sovereign Spread $3\mathrm{.}14\%$