PLEASE HELP ASAP

Which set of ordered pairs does NOT represent y as a function of x?

{(1, 1), (2, 1), (3, 1)}

{(1, 1), (2, 2), (2, 3)}

{(1, 2), (1, 3), (1, 1)}

{(1, 2), (2, 3), (3, 3)}

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