Please somebody help me I’m not very good at number lines *ill give brainliest

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

What number is 7 units left of -15?

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.