Two coplanar lines that are perpendicular to the same line are parallel

Select the sequences that are geometric.

(x-5)1/2+5=2 what is possible solution of this equation

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.