What is the fifth term in the binomial expansion of (x + 5)8

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 inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

Complete the equation of the live through (-1,6) (7,-2)