The rhetorical device you would use to create a feeling of unity between yourself and your audience is first-person plural mode of address.
Using the pronoun <em>we </em>will include both yourself and your audience and create a sense of oneness, so to say. You are all united, which makes your readers feel closer to you as the author.
Answer:
why are the two pupils looking outside 2 why do they seem surprised 3 what are the other people's doing 4 why does the class seem so dirty5 why do the children seem so bored it seems they don't have a teacher.
P = 2l + 2w
P - 2w = 2l
(P - 2w)/2 = 2l/2
(P - 2w)/2 = l.
L = (P - 2w)/2.
I believe B is the correct solution.
