if the marginal tax rate is equal to the average tax rate as taxable incomme increases, the tax structure is

B) proportional

Explanation:

In the case of the proportional tax structure the marginal tax rate should be equivalent to the average tax rate without considering the high level of taxable income or low level of taxable income

Therefore in the given case, the tax structure should be proportional

hence, the correct option is B

And, the same is to be considered

start by isolating the variable on one side by adding 43w^2 to both sides.   the equation will read:

25w^2+5=0

*subtract 5 from both sides*

25w^2=-5

*divide both sides by 25*

w^2=-1/5

*take the square root of both sides*

w=√(-1/5)

the square root of -1 is i.   the square root of 5 remains √5

the answer is i/√5.

hope this

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