Return statistics for Visa stock, the S&P $500$ and the risk$-$free asset, Treasury bills, are given below:

A B C D

$1$ Year Visa S&P $500$ T$-$bill

$220160\mathrm{.}060\mathrm{.}130\mathrm{.}039$

$32017-0\mathrm{.}27-0\mathrm{.}140\mathrm{.}022$

$42018-0\mathrm{.}06-0\mathrm{.}060\mathrm{.}015$

$520190\mathrm{.}050\mathrm{.}280\mathrm{.}02$

$620200\mathrm{.}140\mathrm{.}080\mathrm{.}028$

$720210\mathrm{.}180\mathrm{.}070\mathrm{.}031$

$820220\mathrm{.}040\mathrm{.}050\mathrm{.}035$

$920230\mathrm{.}020\mathrm{.}070\mathrm{.}032$

In addition, you have gathered the following data:

A B C

$1$ Current rf $0\mathrm{.}031$

$2$ Debt in $202215,820$ million

$3$ Debt in $202316,650$ million

$4$ Interest $2023820$ million

$5$ Stock price $31\mathrm{.}49$

$6$ # of shares $1,770$ million

$7$ Tax rate $0\mathrm{.}21$

Regress the excess return on the stock on the excess return on the S&P $500.$ What is Visa's beta?

What is the cost of equity?

What is the cost of debt?

What is the company's weighted average cost of capital?