Dwight is making accessories for the soccer team. He uses 666.12 inches of fabric on headbands for 36 players and 3 coaches. He also uses 321.84 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?

What is the common denominator for 3/5+3/4

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.

Can someone me with this problem . show your work .