Alani's cat is at the top of a tree. Alani stands 20 feet from the tree in order to see the cat near the top. Alani is looking up at a 28o angle with the ground. How tall is the tree? Round to the nearest tenth.

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.