If 52/x is a positive integer, how many integer values are possible for 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.

For the equations below which statement is true ? -2x=14 6x=-42

Solve the system of equations y= 3/2 - 1, -x+ y =-3