Need help with these 2 questions.

Question 6 1 points Use the following formula to calculate the company's sales to PPE for year ended 12/31/16 and year ended 12/31/17 Sales to PPE Total Operating Revenue/Property and Equipment,net Round to two decimal places, for example, 1.5876329-1.59 Now answer the question below Did Delta Air Lines more effectively use property and equipment to generate revenue in the year ended 12/31/17 than in the year ended 12/31/167 o a. Yes