What is 4.5 and negative 2 coordinate plane

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

Which graph represents an even function?