If f(x)=(x+1)^-1 and g(x)=x-2 what is the domain of f(x)/g(x)

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.

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)