Graphical representations of the KLA$-$Tencor $2018$ income statement and average balance sheet numbers $(2017-2018)$ follow $($$ thousands$).$

Note: Assume a statutory tax rate of $22\%.$

a$.$ Compute return on equity $($ROE$).$

Note: $1.$ Select the appropriate numerator and denominator used to compute ROE from the drop$-$down menu options. $2.$ Enter the numerator and denominator amounts to compute ROE.

b$.$ Compute return on assets $($ROA$).$

Note: $1.$ Select the appropriate numerator and denominator used to compute ROA from the drop$-$down menu options. $2.$ Enter the numerator and denominator amounts to compute ROA.

c$.$ Compute return on net operating assets $($RNOA$).$

Note: $1.$ Select the appropriate numerator and denominator used to compute RNOA from the drop$-$down menu options. $2.$ Enter the numerator and denominator amounts to compute RNOA.