Seo-yeon is buying replacement soccer balls for a community sports league. There are currently 17 soccer balls available and Seo-yeon knows that each team will want at least 3 soccer balls. B) There are 8 teams in the league. Solve your inequality to determine how many soccer balls Seo-yeon should purchase. Seo-yeon should purchase at least soccer balls *

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.

I'm confused on how to solve the triangle. can someone me ?

What is the value of x in the equation 15(x + 4) - 3 = 4.5(x - 2)?