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

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

c$.$ Compute and disaggregate $3$M$\text{'}$s RNOA into net operating profit margin $($NOPM$)$ and net operating asset turnover $($NOAT$)$ for $2018.$ Demonstrate that RNOA $=$ NOPM $\backslash$times NOAT.

$***$RNOA may be different from first RNOA calculation due to rounding

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

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

f$.$ What is the nonoperating return component of ROE for $2018?$