In which of the following systems can elimination be used to eliminate a variable by performing addition only? 2x – y = 8 x – 2y = 9 2x – y = 8 x – 2y = 9 2x – 4y = –2 5x – 2y = –2 2x + y = 8 3x – y = 4

Which is an advantage to using nonrenewable resources? a. they can be cheaper. b.they can have a lower impact on the environment. c.they can be used up rapidly. d.they can contribute to global warming.

Which group of college students is typically offered scholarship? a. freshmen, sophomores, and juniors. b. biology, english, and engineering majors. c. hard workers, part-time students, and out of state students. d. first time freshmen, current students, and transfer students.

Why has there been such a large increase in theft and other crimes in the u.s