Suppose in its 2022 annual report that McDonald's Corporation reports beginning total assets of $20 billion, ending total assets of $20 billion, net sales of $21 billion, and net income of $4 billion. (a) Compute McDonald's return on assets. (Round return on assets to 2 decimal places, e.g. 5.12%.) McDonald's return on assets % (b) Compute McDonald's asset turnover. (Round asset turnover to 2 decimal places, e.g. 5.12.) McDonald's asset turnover times