The total market value of the common stock of the Acme Company is $10 million, and the total value of its debt is $9 million. The treasurer estimates that the beta of the stock is currently 0.9 and that the expected risk premium on the market is 7%. The Treasury bill rate is 3%. The company tax rate is 20%. Assume for simplicity that Acme debt is risk-free.

Estimate the company cost of capital.