If meg cycles 6.2 km every morning how many feet are in 6.2 given that 1 mile = 1.609 and 1 mile =5,280

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.