Please help I'm stuck again

The heaviest 16% of all men in weight weigh more than how many pounds ?

What could explain what happened when the time was equal to 120 minutes

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.