Selected sales and operating data for three divisions of different structural engineering firms are given as follows: division a division b division c sales $ 6,100,000 $ 10,100,000 $ 9,200,000 average operating assets $ 1,525,000 $ 5,050,000 $ 2,300,000 net operating income $ 317,200 $ 929,200 $ 225,400 minimum required rate of return 15.00 % 18.40 % 12.00 % required: 1. compute the return on investment (roi) for each division using the formula stated in terms of margin and turnover. (round your answers to 2 decimal places.) 2. compute the residual income (loss) for each division. (loss amounts should be indicated by a minus sign. round your "required rate of return" to 2 decimal places.) 3. assume that each division is presented with an investment opportunity that would yield a 17% rate of return. a. if performance is being measured by roi, which division or divisions will probably accept or reject the opportunity