a$.$ What is the profitability index for the set of cash flows if the relevant discount rate is $11$

percent? $($Do not round intermediate calculations and round your answer to $3$

decimal places, e$.$g$.,32\mathrm{.}161.)$

b$.$ What is the profitability index for the set of cash flows if the relevant discount rate is $16$

percent? $($Do not round intermediate calculations and round your answer to $3$

decimal places, e$.$g$.,32\mathrm{.}161.)$

c$.$ What is the profitability index for the set of cash flows if the relevant discount rate is

$23$ percent? $($Do not round intermediate calculations and round your answer to $3$

decimal places, e$.$g$.,32\mathrm{.}161.)$