In early $20182018,$ Qualcomm Inc.Qualcomm Inc. had $$$$21\mathrm{.}0021\mathrm{.}00$ billion in$$ debt, total equity capitalization of $$$$7878$billion$,$ and an equity beta of $1\mathrm{.}491\mathrm{.}49($as reported on$$ Yahoo! Finance$).$ Included in Qualcomm'sQualcomm's assets was $$$$3737$ billion in cash and$$ risk$-$free securities$.$ Assume that$$Qualcomm$\text{'}$sQualcomm$\text{'}$s debt beta is close to$$ zero, the$$ risk$-$free rate of interest is $3\mathrm{.}0\%3\mathrm{.}0\%$ and the market risk premium is $4\mathrm{.}0\%4\mathrm{.}0\%.$

a$.$ What is Qualcomm'sQualcomm's enterprise$$ value?

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

c$.$ What is Qualcomm'sQualcomm's $$WACC$?$