Determine if each ordered pair is a solution to the equation. Select all that are true.
y = 5x (5.1)
y = x -7 (10,3)
y = -x (3.-3)
y = 2x + 2(1,23)
uestion 2

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Factor and solve to find roots x squared -x - 90 =0