please solve all the questions DuPont Model

Question $1$: Inferring Information from the DuPont Model

In this chapter, we discussed the DuPont model. Using that framework, find the missing amount

in each case below:

Case $1$: ROE is $10$ percent; net earnings are $$300,000$; total asset turnover ratio is $5$ ; and net

sales are $$1,000,000.$ What is the amount of average shareholders' equity?

Case $2$: Net earnings are $$440,000$; net sales are $$8,000,000$; average shareholders' equity is

$$2,000,000$; ROE is $22$ percent; and total asset turnover ratio is $8.$ What is the amount of average

total assets?

Case $3$: ROE is $15$ percent; net profit margin ratio is $10$ percent; total asset turnover ratio is $5$;

and average total assets are $$1,000,000.$ What is the amount of average shareholders' equity?

Case $4$: Net earnings are $$150,000$; ROE is $15$ percent; total asset turnover ratio is $5$ ; net sales

are $$1,000,000$; and financial leverage is $2.$ What is the amount of average total assets?