How to solve these two problems? please show me the step. Thank you.

Applebaum Enterprises had a sales margin of 8%, sales of $3,000,000, and invested capital of $2,000,000. The company's ROI was: A. 5.33%. B. 7.00%. C. 12.00%. D. 20.00%. E. some other figure. Mission, Inc., reported a return on investment of 12%, a capital turnover of 5, and income of $180,000. On the basis of this information, the company's invested capital was: A. $300,000. B. $900,000. C. $1, 500,000. D. $7, 500,000. E. some other amount