So i know this is for asking about homework, but i like this one guy, but i'm not friends with him or anyone in his "group". they're like more popular, but it's not like im a "loser" either, i'm pretty much in the middle. i know, i know, popular guys aren't the only guys, but still. what should i do?

Is a currency whose value is tied to another currency, meaning that the exchange is fixed

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.

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5