What is one way the author helps develop the central idea of the first section

Explanation:

Every author and writer has to develop the main idea of the text in one of the sections and the first section is often the one who is showing it. It can also be at the end of the story.

The central idea will focus on what is the most important topic of the story and it has ability to control the direction of the writing.

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?