Are the following included in U.S. GDP?

Briefly explain why or why not:

a. Used textbooks sold at your college bookstore

b. Used books sold at a garage sale

c. Cars made in the United States at a Toyota factory

d. Cars made in Germany at a General Motors factory

e. The price paid by a German tourist when staying at a New York City hotel

f. The price paid by an American tourist staying at a Berlin hotel g. A ticket for a Yankees game. mki7