Why does my garage door open after i close it?

in afghanistan, yelda, the first month of jadi is the longest night of the year. amir says that yelda was the starless night tormented lovers kept vigil enduring the endless dark, waiting for the sun to raise and bring with it their loved. amir says he became a yelda when he met soraya in america.

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?