A cell phone company ofers monthly plan for 35 dollars it includes 3 gigabytes of data. If someone uses more than 3 gigabytes the company charges 15.00 per gigabyte for additional gigabytes write an equation

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