b. Compute net operating assets (NOA) for 2018 and 2017. c. Compute and disaggregate 3M's RNOA into net operating profit margin (NOPM) and net operating asset turnover (NOAT) for 2018. Demonstrate that RNOA = NOPM NOAT. ***RNOA may be different from first RNOA calculation due to rounding d. Compute net nonoperating obligations (NNO) for 2018 and 2017. Confirm the relation: NOA = NNO + Total equity e. Compute return on equity (ROE) for 2018 . f. What is the nonoperating return component of ROE for 2018 ? Analysis and Interpretation of Profitability Balance sheets and income statements for 3M Company follow