What's 506.25 roundest to the nearest whole

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.

Which value would be a solution for x in the inequality 47-4x< 7

Is the point (0, 8) on the x-axis or y-axis? how do you know?