June spent $78.91 on her pizza at Mellow Mushroom. She spent $6.65 on her drinks. How much more did she spend on pizza than drinks?

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.