I need some help , please do NOT use AI to solve it as it cannot solve it correctly.

(Round dallors to the nearest cent and round percentages to one decimal place.)

Using the individual tax rate schedule , perform the following: a. Calculate the tax liability, after-tax earnings, and average tax rates for the following levels of partnership earnings before taxes: $13,300;$77,700;$325,000;$493,000;$1.2 million; \$1.6 million; and \$2.1 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? TABLE 1.2: Federal Income Tax Rates and Brackets for Individual Returns (2018) Using the individual tax rate schedule , perform the following: a. Calculate the tax liability, after-tax earnings, and average tax rates for the following levels of partnership earnings before taxes: $13,300;$77,700;$325,000;$493,000;$1.2 million; \$1.6 million; and \$2.1 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? TABLE 1.2: Federal Income Tax Rates and Brackets for Individual Returns (2018)