What is the area of 3/4 times 1

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 of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

How do you find the distance of each number from the mean