Using the individual tax rate schedule perform the following a. Calculate the tax liability, after-tax earnings, and avorago tax rates for the following levels of partnership earnings before taxes $10,400, $76,800,$310,000,$498,000,$13 million, $17 million, and $22 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. Calculate the tax liability, after-tax earnings, and average tax rates for the following levels of partnership earnings before taxes $10,400,$76,800,$310,000,$498,000;$1.3 million; $1.7 million, and $22 million (Round dollars to the nearest cent and round percentages to one decimal place ) (Round dollars to the nearest cent and round percentages to one decimal place.)