Investment $x$ offers to pay you $$4,700$ per year for nine years, whereas Investment $Y$

offers to pay you $$6,800$ per year for five years.

a$.$ Calculate the present value for Investments $x$ and $Y$ if the discount rate is $5$ percent.

$($Do not round Intermedlate calculatlons and round your answers to $2$ decimal

places, e$.$g$.,32\mathrm{.}16.)$

b$.$ Calculate the present value for Investments $x$ and $Y$ if the discount rate is $15$ percent.

$($Do not round intermedlate calculations and round your answers to $2$ decimal

places, e$.$g$.,32\mathrm{.}16.)$