The population of Chicago, IL, is about `93,495` people. Ten years ago, the population was about `75,400` people.

By what percent did the population increase between ten years ago and now?

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .