In January 2019 , United Airlines (UAL) had a market capitalization of $22.46 billion, debt of $13.07 billion, and cash of $3.93 billion. United Airlines had revenues of $41.32 billion. Southwest Airlines (LUV) had a market capitalization of $27.56 billion, debt of $3.24 billion, cash of $3.83 billion, and revenues of $21.55 bilion. a. Compare the market capitalization-to-revenue ratio (also called the price-to-sales ratio) for United Airlines and Southwest Airlines. b. Compare the enterprise value-to-revenue ratio for United Airlines and Southwest Airlines. c. Which of these comparisons is more meaningful? Explain. a. Compare the market capitalization-to-revenue ratio (also called the price-to-sales ratio) for United Airlines and Southwest Airlinos. The market capitalization-to-revenue ratio for United Airlines is (Round to three decimal places.)