The answer choices are:
a)-3y
b)-3y+1
c)3y
d)3i

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.

This is so hard and it’s for a test

How many roots does the graphed polynomial function have? 1-02