Is deciding to study and internal or external conflict ?

Deciding to study is an internal conflict because it is an inner struggle also known as man vs self. Another example of an internal conflict would be an emotional problem like anxiety or difficult decision making. External conflict is a struggle outside of yourself, such as, someone bullying you, or a snake in the wild. (man vs nature)

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?

because they were not just any seashells they were sally's seashells