Finding operating and free cash flows Consider the following balance sheets and selected data from the income statement of Keith Corporation. a Calculate the firm's not operating profit after taxes (NOPAT) for the year ended December 31, 2015, using Equation 4.1. b. Calculate the firm's operating cash flow (OCF) for the year ended December 31, 2015, using Equation 4.3. c. Calculate the firm's free cash flow (FCF) for the year ended December 31, 2015, using Equation 4 4. d. Interpret, compare, and contrast your cash flow estimates In parts b and c