In mid-2015, Qualcomm Inc. had $15 billion in debt, total equity capitalization of $91 billion, and an equity beta of (as reported on Yahoo! Finance). Included in Qualcomm's assets was $25 billion in cash and risk-free securities. Assume that the risk-free rate of interest is 2.9% and the market risk premium is 3.9%.

a. What is Qualcomm's enterprise value?

b. What is the beta of Qualcomm's business assets?

c. What is Qualcomm's WACC?

Please answer all parts.