Whats 2x+65x-32x to the root of 3x

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.

What is the number 321,000,000 in scientific notation? also what is the number? ?

Who long does it take to drive 150 miles at 45 miles per hour