In its 2018 Form 10-K, FedEx reported the following information (in $ millions). Total debt $17,580 Free cash flow (FCF) $123 EBITDA 7,819 Interest expense 588 Calculate the three ratios that Moody's Investors Service uses to assign credit ratings. Notes: Round all ratios to two decimal places. FCF/Debt ratio is a percentage ratio (ex: 0.12345 = 12.35%). Assign a credit rating for each ratio using the drop-down answer options. Ratio Credit rating Debt/EBITDA Answer 1 0 Answer 2 FCF/Debt Answer 3 0 Answer 4 EBITDA/Interest expense Answer 5 0 Answer 6