Maybe it could be about the benefits and challenges?
Flashback - a literary device often employed to recall a previous event or memory in a character's mind. This device allows for background knowledge to be expanded for events that do not take place chronologically in the story arc. Often are used in first person point of view.
Simple. I assume the ones going to the middle school are currently in 5th grade at the elementary school. You have 126 coming into the middle school from each school. You need to multiply 126 by 4. You get 504. There will be 504 new students at the middle school.
Answer:
B. Launched her body forward.
Explanation: