In$$ mid$-2015,$ Cisco Systems had a market capitalization of $$$$130$ billion. It had$$ A$-$rated debt of $$$$25$ billion as well as cash and$$ short$-$term investments of $$$$60$billion$,$ and its estimated equity beta at the time was

$1\mathrm{.}11.$

a$.$ What is Cisco$\text{'}$s enterprise$$ value?

b$.$ Assuming Cisco$\text{'}$s debt has a beta of$$ zero, estimate the beta of Cisco$\text{'}$s underlying business enterprise.