Mark earns $550.00 per month. If he spends $220.00 a month on gas, what percent of his total monthly income does he spend on gas?​

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