I need to know how to do part A, B, and C in the dark grey box with the provided financial information.

Income statements and balance sheets follow for Snap-On Incorporated. Refer to these financial statements to answer the requirements. Snap-On Incorporated Consolidated Statements of Earnings (Amounts in millions) REQUIRED: For a) and b), Round to one decimal place. For c), use the % sign and Round to one decimal place. Compute net operating profit after tax (NOPAT) for 2016 and 2015. Assume that combined federal and state statutory tax rates are 37% for fiscal 2016 and 2015. 2016 tax shield