-The table above gives the taxable income and the amount of tax paid.
a.Is this income tax progressive,regressive,or proportional?
b.If the taxable income is $25,000,what is the average tax rate?
c.If taxable income increases from $25,000 to $30,000,what is the marginal tax rate?

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The Answer of 
-The table above gives the taxable income and the amount of tax paid.
a.Is this income tax progressive,regressive,or proportional?
b.If the taxable income is $25,000,what is the average tax rate?
c.If taxable income increases from $25,000 to $30,000,what is the marginal tax rate?

-The Table Above Gives the Taxable Income and the Amount