AREA OF CIRCLES PLS HELPP​

What is the approximate circumference of the circle shown below?

On a piece of paper, graph . then determine which answer choice matches the graph you drew

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.