The right rectangular prism will be sliced perpendicular to its base along the dashed line. select from the drop-down menus to correctly describe the cross section formed by the slice. (1)the cross section is a (choose 1,2,3, or 4) (2) with an area of (choose 1,2,3, or 4) cm². answers for 1 are 1 triangle, 2 rectangle, 3 pentagon, or 4 square. answers for 2 are   8,10,12,20 the picture of the rectangular prism is down below.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

How do you solving the solution of each system using elimination?