What do the piano players and the man pacing the second floor symbolize?

Mental instability

Explanation:

playing a piano helps to reduce the Mental health cases like anxiety and depression. studies have shown this to be true, it can also help your over all health situation because Music soothes the soul of someone who is engrossed in it passionately. a piano player symbolizes someone who might be anxious or depressed which is categorized as mental instability

Pacing the floor is a symbol that one is anxious ( anxiety ) of something that is going to happen or has just happened in a situation. and Anxiety is part of the Mental health of an individual hence the man pacing the floor at a particular point in time is said to be having Mental instability due to his anxious nature at the time.

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?