6-If a price of a textbook rises and then students purchase fewer economic model can show a cause-and-effect relationship only if which of the following conditions hold: Question 6 options: a- students' incomes fall. b- tuition decreases. c- the number of students increases. d everything else is constant. e- the bookstore no longer accepts used book trade-ins. 6-If a price of a textbook rises and then students purchase fewer economic model can show a cause-and-effect relationship only if which of the following conditions hold: 6-If a price of a textbook rises and then students purchase fewer economic model can show a cause-and-effect relationship only if which of the following conditions hold: a- students' incomes fall. b- tuition decreases. c- the number of students increases. d everything else is constant. e- the bookstore no longer accepts used book trade-ins. students' incomes fall. tuition decreases. the number of students increases. everything else is constant. the bookstore no longer accepts used book trade-ins. a- students' incomes fall. b- tuition decreases. c- the number of students increases. d everything else is constant. e- the bookstore no longer accepts used book trade-ins.
Explanation / Answer
the number of students increases. c- the number of students increases.