A psychologist designs an 8-item pain survey asking athletes to identify their level of pain after a football injury. She is considering either a 5-point scale or a 10-point scale. In how many different ways could a person answer each survey?

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.

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Solve 2x − 1 = 11 for x using the change of base formula log base b of y equals log y over log b.