4+8+12+... + 4n=2n(n+1)

What is best way to getting answer for my exam is

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

Find the missing factor. write your answer inexponential form.9^2=9^4×