Angle marked in the diagram beside are measured in degree find x​

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.

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

You can find the constant of proportionality by finding the ratio of