What is love? Baby don't hurt me, don't hurt me, no more!

Solve the system of equations. y= 2x y= x^2 - 15

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?