Please show all work!

You need to estimate the equity beta for Golden Chemical, Inc. Golden's debt-to-asset ratio is 20%, and its debt beta is 0.25. The following table shows the betas, debt betas and debt-to-equity ratios for three comparable chemical firms (all taken from finance.yahoo.com). Assume the tax rate is 40% for all four firms. Please show your work and clearly label your answers.

Company	Beta	D/E Ratio	Debt Beta
Eastman Chemical	1.45	0.75	0.3
Celanese Corp	1.28	0.82	0.3
Dow Chemical	2.56	0.96	0.3

1. 1.Assumingdebtisrisk-free,usetheinformationgivenabovetoestimatetheunleveredequitybetasofeachofthesecompanies.
3. 2.Assumingdebtisrisk-free,whatisyourestimateofGoldenChemical'sleveredequitybeta?
5. 3.The current risk-free rate is 2.4% and the current market risk premium is 7.53%. If Golden's before-tax cost of debt is 6.8% and it has no preferred stock in its capital structure, what is Golden's weighted average cost of capital?