5 of 5 View Policies < > Current Attempt in Progress Presented below is selected information for three regional divisions of Medina Company Divisions North West South Contribution margin $299,000 $499.000 $399,000 Controllable margin $138,400 $358.200 $208,600 Average operating assets $990,000 $1,990,000 $1,490,000 Minimum rate of return 11 % 14 % 8% (a) Compute the return on investment for each division (b) North Division West Division South Division eTextbook and Media Attempts: 0 of 5 used The parts of this question must be completed in order. This part will be available when you complete the part above (c) The parts of this question must be completed in ceder. This part will be available when you complete the part -13