In $2020,$ Natural Selection, a nationwide computer dating service, had $$534$ million of assets and $$217$ million of liabilities. Earnings before interest and taxes were $$137$ million, interest expense was $$30$ million, the tax rate was $40$ percent, principal repayment requirements were $$25\mathrm{.}2$ million, and annual dividends were $20$ cents per share on $21$ million shares outstanding.

a$.$ Calculate the following for Natural Selection:

Note: Round your answers to $2$ decimal places.

$\backslash$table$[[$Liabilities$-$to$-$equity ratio,$],[$Times$-$interest$-$earned ratio,$],[$Times burden covered,$]]$