1. Using the below links to access consolidated Income Statements and Balance Sheets, calculate the following ratios. Also, respond to how both MRK and PFE compare to their own annual (hit annual tab in google finance link) histories as well as their peer...over the past 3 years when computing the following. Please also comment on what, within their Income Statements and/or Balance Sheets, is driving the growth or deterioration of the component ratios and ROE over time. Net Margins Total Asset Turnover Equity Multiplier Return on Equity - 3 stage (commenting on drivers of sustainability and/or growth of ROE)