Ineed the answer for b! whoever answers first will get a brainliest, a , and 50 points! also plz tell me how you got the answer

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 the shape of a cross section of the figure shown below

Can you me find the slope! (30 points)