20 is what percent of 160

Solve |x| > -9 a) {x|x< -9 or x> 9} b) all reals c) no solution

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.

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.