Which phrase should be inserted on the line to make a true statement? Use the models to help. Two-thirds blank line StartFraction 8 Over 12 EndFraction Two-thirds A model has 2 shaded parts and 1 unshaded part. StartFraction 8 Over 12 EndFraction A model has 8 shaded parts and 4 unshaded parts.

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.

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64