Need some help with these practice questions, no working out needed, thanks!

Question 5 2 pts Which of the following is included in the calculation of GDP? 0 The purchase of ink and paper supplies by a textbook company for the production of new textbooks. O The purchase of a used textbook from a friend who took the same class last year. Q The purchase of tutoring services from a tutor who holds citizenship outside the country but resides within the country. 0 The purchase of a new edition of a foreign textbook that was produced in a different nation. Question 6 2 pts A recession has traditionally been dened as a period during which 0 nominal GDP declines for four consecutive quarters. 0 real GDP declines for four consecutive quarters. 0 real GDP declines for two consecutive quarters. O nominal GDP declines for two consecutive quarters. Question 7 Unemployment that is due to a recession is O structural unemployment. O involuntary unemployment. O cyclical unemployment. O frictional unemployment. Question 8 Structural unemployment is caused by O short-term changes in the economy. 0 the impact of the business cycle on job opportunities. 0 temporary layoffs in industries such as construction. 0 shifts in the economy that make certain job skills obsolete