Circle and squares are in the ratio 2:3 what fraction are circles

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

∆red ≅ ∆ by rule will give brainiest if possible

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.