need help finding EV/EBITDA

Edelman Engines has $18 billion in total assets- of which cash and equivalents total $100 million. Its balance sheet shows $3.6 billion in current liabilities - of which the notes payable balance totals $1.2 billion. The firm also has $8.1 billion in long-term debt and $6.3 billion in common equity. It has 300 million shares of common stock outstanding, and its stock price is $36 per share. The firm's EBITDA totals $1.728 billion. Assume the firm's debt is priced at par, so the market value of its debt equals its book value. What are Edelman's market/book and its EV/EBITDA ratios? Do not round intermediate calculations. Round your answers to two decimal places. M/B: 1.71 EV/EBITDA 2.15 Hide Feedback Partially Correct