Marginal corporate tax rates  

a. Find the marginal tax rate for the following levels of corporate earnings before? taxes $14,900?; $61,000?; $89,100?; $196,000?; $404,000; $1.6 ?million; and $19.7 million.

b. Plot the marginal tax rates? (measured on the y? axis) against the pretax income levels? (measured on the x? axis). Explain the relationship between these variables.

a. The marginal tax rate for earnings before taxes of $14,900 is %. (Round to the nearest? integer.)