Sharon pays a tax of $4,000 on her income of $40,000 . while Brad pays a tax of $1,000 on his income of $20,000 . This tax is:

Pizza and tacos are substitutes, and the price of a pizza increases. Which of the following correctly indicates what happens?

A) The demand for pizzas decreases and the demand for tacos increases. B) The demand for both goods decreases. C) The quantity of tacos demanded increases and the quantity of pizza demanded decreases. D) The quantity of pizza demanded decreases and the demand for tacos increases. E) The demand for each decreases because both are normal goods.

If you pay $3,000 in taxes on an income of $28,000, and $4,450 in taxes on an income of $38,000, what is your marginal tax rate? Show your work

What will be an ideal response?