Find the present values of the following cash flow streams at a $7\%$ discount rate.

$9-1.(2\mathrm{.}5$ points$)$ Find the present value of the cash flow stream A at a $7\%$ discount rate.

A$.1076\mathrm{.}85$

B$.1176\mathrm{.}85$

C$.1276\mathrm{.}85$

D$.1376\mathrm{.}85$

E$.1476\mathrm{.}85$

$9-2.(2\mathrm{.}5$ points$)$ Find the present value of the cash flow stream B at a $9\%$ discount rate.