Last year 90 schools participated in the State Spelling Bee. This year there were 20% more schools participating than last year. How many schools participated in the spelling bee this year? Enter your answer in the box.

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 a justification used while proving the similarity of triangles lom and mon

Multiply. write your answer in simplest form. 3/8 x 5/7