How to do this 2 questions?

MasterCard's Profitability Study the information on MasterCard's pre-tax profit margin. For your information, pre-tax profit margin is similar to operating profit margin. MasterCard MasterCard Year 2016 2015 2014 Pre-Tax Profit Margin 52.4% 51.3% 53.8% Make a comment on MasterCard's profitability from 2014 to 2016. You can learn about MasterCard by visiting this link and use the relevant information to support your points. Examine efficiency ratios Inventory turnover Avg. settlement period AR Avg. settlement period AP Company Y 104 days 126 days 89 days Company z 50 days 42 days 95 days Study the efficiency ratios for company Y and Z below. All the ratios are considered as normal for the companies. Based on the efficiency ratios, do you agree that Company Y sells high-value products and it is a cash rich company? Justify your