Apple has a $477 billion market cap (the value of their equity) and $17 billion in long term debt (market value of their debt). Yahoo Finance...

Apple has a $477 billion market cap (the value of their equity) and $17 billion in long term debt (market value of their debt). Yahoo Finance estimates their Beta at 0.58 and the cost of their debt (required rate of return on debt) of 3%. If the market is expected to return 8%, the risk free rate is 1%, and the corporate tax rate is 30%, what is Apple's WACC?