Based on the data below, determine the firm's tax liability, net income, average tax rate, and marginal tax rate.

Net sales $($all credit$)$

Less: Cost of goodssold

Gross profits

Less: Other operating expenses

Earnings before interest, taxes, depreciation, and amortization $($EBITDA$)\frac{90,000}{260,000}$

Less: Depreciation and amortization

Earnings before interest and taxes $($EBIT$)$

Less: Interest

Earnings before taxes $($EBT$)$

Less: Taxes

Net income