Hello, I need some help getting unstuck. I need to get the numbers for 3 years of ratio for American Airlines. Im not sure on this

Gross margin %

EBITDA margin %

Net Income margin %

S,G&A as a % of revenue

ROA

ROE

Debt/EBITDA

EBITDA/interest expense

(EBITDA-capex)/interest expense

Debt ratio: total assets/total liabilities

Current ratio

Quick ratio

Enterprise value/EBITDA

Price/Earnings

Dividend yield

Inventory turns

Days receivable

Days payable

Capital Expenditures as % of revenue

At the end I need to explaining anything that you think is important that these ratios say about American Airlines (e.g. high margins, low margins, high or low leverage etc.). What conclusions can you draw about American Airlines from these ratios? How do they compare to the other companies your group is looking at?