Which of the following sets of points is a direct variation? (0, 0); (-1, -2); (1, 2) (0,0)(2, 4); (5, 15) O (3,6); (-2, 4); (-1, 2) (0.5); (1,6); (2,7)​

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