The Dakota Corporation had a 2018 taxable income of $33,365,000 from operations after all operating costs but before

(1) Interest charges of $8,500,000;

(2) Dividends received of $750,000;

(3) Dividends paid of $5,250,000; and

(4) Income taxes.

a. Use the tax schedule in Table 2.3 to calculate Dakota's income tax liability.

b. What are Dakota's average and marginal tax rates on taxable income?