The ratio of girls to boys in a class room is 3.5. Kevin say there must be 8 students in the classroom. Which explains whether Kevin is correct?

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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.

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is