help with this $?$ please $($a$)$ Compute net operating profit after tax $($NOPAT$)$ for $2018.$ Assume that the combined federal and state statutory tax rate is $\backslash (22\backslash \%\backslash ).$

$($b$)$ Compute net operating assets $($NOA$)$ for $2018$ and $2017.$

$($d$)$ Compute net nonoperating obligations $($NNO$)$ for $2018$ and $2017.$ Confirm the relation: $\backslash (\backslash$mathrm$\{$NOA$\}=\backslash$mathrm$\{$NNO$\}+\backslash )$ Total equity.

$($e$)$ Compute return on equity $($ROE$)$ for $2018.$

$($f$)$ Infer the nonoperating return component of ROE for $2018.$ Use above answers to calculate.