a$.$ Was the company profitable in $2018?$

b$.$ Was the company more profitable in $2018$ or $2017?$

c$.$ Is the change in productivity a positive or negative development?

d$.$ Compute the company's ROA for $2018$ and for $2017.$

e$.$ From the information provided, which of the following best explains the change in ROA during

$2018?$

$1.$ The company's profitability weakened considerably.

$2.$ The company's profitability weakened considerably and its productivity fell.

$3.$ The company had markedly more assets in $2018.$

$4.$ The company had a marked drop in revenue in $2018.$