Will give brainliest if u get this right

the first term of an arithmetic sequence is 4 and the fifth term is 16. what is the nth term of the sequence?

a.
4n
b.
3n + 1
c.
5n – 1
d.
4n + 1

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

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.

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq