How many of the students in a certain class are taking both a history and a science course? (1) Of all the students in the class, 50 are taking a history course. (2) Of all the students in the class, 70 are taking a science course.

How were castas paintings used to stabilize a society?

Why might collective bargaining fail, causing a union to go on strike? a the union agrees with the boss about wages. b the boss compromises about work hours. c the factory goes out of business, causing the workers to lose their jobs. d the boss refuses to address dangerous working conditions in the factories.

Overpopulation puts severe stress on the environment because .