Required:

Firm A has a margin of $13\%,$ sales of $$540,000,$ and ROI of $19\%.$ Calculate the firm's average total assets.

Firm B has net income of $$72,000,$ asset turnover of $1\mathrm{.}10,$ and average total assets of $$940,000.$ Calculate the firm's sales, margin, and ROI.

Firm C has net income of $$134,000,$ asset turnover of $2\mathrm{.}01,$ and ROI of $23\mathrm{.}30\%.$ Calculate the firm's margin, sales, and average total assets.