15. Financial ratios (S29.2–S29.5) Look again at Table 29.8, which gives abbreviated balance sheets and income statements for Walmart. Assume Walmart had a 21% corporate tax rate in 2019. Calculate the following using balance-sheet figures from the start of the year:

a. Return on assets.

b. Operating profit margin.

c. Sales-to-assets ratio.

d. Inventory turnover.

e. Debt–equity ratio.

f. Current ratio.

g. Quick ratio.