Why is it important to use complex sentence structures in expository essay composition?

a. they illustrate mature and educated writing.
b. they impress the reader.
c. they provide evidence for the assertions in the thesis.
d. they introduce or summarize key points.

As one of the four traditional modes of discourse, expository writing may include elements of narration, description, and argumentation, but unlike creative writing or persuasive writing, its primary goal is to deliver information about an issue, subject, method, or idea.

at hatfield elementary school, there are 504 students in 7 classes. each class has the same number of students. what is a good estimate of the number of students in each class?

what are the answers?