If m angle a equals 48 degrees fine the m angle b

Which number line correctly shows 0.8 + 0.3?

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.

What are the solutions of the following system? y=-2x^2 y=x-2