How do u find 3/2 as the axis of symmetry

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74

The anwser cause i do not understand just plez

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120