Suppose taxpayers are required to pay a base tax of $50 plus 30 percent on any income over $100, as in the initial tax system B in the table below. Suppose further that the taxing authority wishes to raise by $40 the taxes of people with incomes of $200.

Tax System B
Initial Tax Schedule	Tax on Income of $200	Tax rate		Disposable Income
		Average	Marginal
$50 + 30% of income over $100	$80	40%	30%	$120

(a) If marginal tax rates are to remain unchanged, what will the new base tax have to be? Instructions: Enter your response as a whole number. $ (b) If the base tax of $50 is to remain unchanged, what will the marginal tax rate have to be? %