Cost of Capital and capital budget

An all equity financed firm is considering the following projects

project	beta	IRR
W	0.75	10%
X	0.9	10.2%
Y	1.2	12%
Z	1.5	15%

Risk free rate is 5% and market risk premium is 6%.

If the firms overall cost of equity is 11%, which projects should be accepted

Which projects have higher risk than the companys overall risk

Adjust for project risk, which projects should be accepted.