Not sure why I got these two questions wrong. Can some one explain what the correct answer is and why. A bit confused as to why these are the wrong answers.

Which of the following is not a common financial ratio used in credit analysis? Debt Service Coverage Ratio Current Ratio Return on Equity Leverage Ratio Which of the following is not part of the debt amortization in UCA cash flow statement? Capital Expenditures Interest Expense Long term debt amortization Dividends paid