Average corporate tax rates. Using the corporate tax rate schedule given here to perform the following:

a. Calculate the tax liability, after-tax earnings, and average tax rates for the following levels of corporate earnings before taxes: $ 8, 100; $ 80, 000; $ 296, 000; $ 504, 000; $ 1.8 million; $9.4 million; and $ 20.4 million.

b. Plot the average tax rates (measured on the y axis) against the pretax income levels (measured on the x axis). What generalization can be made concerning the relationship between these variables?

a. Find the marginal tax rate for the following levels of corporate earnings before taxes: $ 8 comma 100; $ 80, 000; $ 296, 000; $ 504, 000; $ 1, 800, 000; $ 9.4 million; and; $ 20.4 million.

The tax liability for earnings before taxes of $ 8 comma 100 is $nothing. (Round to the nearest dollar.)