Hannah has 127 books in her collection. her school is hosting a book donation. there are z students at her school, and they each plan to donate the same amount of books and reach a total donation of 300 books. how many books will hannah have in her collection after her donation. write your answer as an expression.

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?