Who can help me find the volume??

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.

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.

Simplify the following expression 48^1/2