MSFT has an expected return of $0\mathrm{.}17$ and a standard deviation sigma of $0\mathrm{.}21$

WMT has an expected return $.$ of $0\mathrm{.}14$ and a standard deviation sigma of $0\mathrm{.}24$

The correlation between MSFT and WMT is $0\mathrm{.}43$

Compute the expected return of the portfolio if you invest a fraction $0\mathrm{.}73$ into MSFT and the rest into WMT$.$