Dina took 12 hours to read a 600 page book what was her page per minute rate?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need