Answer:
62.50 %
Step-by-step explanation:
Debt-to-assets ratio = Interest bearing debt / total assets x 100
where,
Accounting Equation :
Assets = Equity + Liability
also stated,
Liability = Assets - Equity
therefore
Interest bearing debt = Assets - Equity
Equity = Stocks + Retained Earnings
for 2019
Equity = $13 billion + ($13 billion - $11 billion) = $15 billion
Interest bearing debt = $40 billion - $15 billion = $25 billion
therefore,
Debt-to-assets ratio = $25 billion / $40 billion x 100 = 62.50 %
Conclusion
The company's debt-to-assets ratio on December 31, 2019 is 62.50 %