At a taxable income of $40,000 Mari's income tax is $7,400. When her taxable income rises to $45,000 her income tax is $8,400. Based on this information, what is Mari's marginal tax rate?

Fiscal policy involves manipulating ________

A) the supply of money B) consumption spending C) federal subsidies and minimum wage values D) government spending and taxes

The income effect of a decrease in the price of potatoes (an inferior good) is a(n)

a. decrease in the demand for potatoes b. decrease in the quantity demanded of potatoes c. increase in the demand for potatoes d. increase in the quantity demanded of potatoes e. new demand curve because everything else is no longer constant