hoes Required: a. Firm A has a margin of 12%, sales of $590,000, and ROI of 18%. Calculate the firm's average total assets. b. Firm B has net income of $74,000, turnover of 1.10, and average total assets of $910,000. Calculate the firm's sales, margin, and ROI. c. Firm C has net income of $138,000, turnover of 2.01, and ROI of 23.60%. Calculate the firm's margin, sales, and average total assets. Complete this question by entering your answers in the tabs below. Required A Required B Required C Firm A has a margin of 12%, sales of $590,000, and ROI of 18%. Calculate the firm's average total assets. (Round "Turnover" to 1 decimal place.) Average total assets Bed A Required B >