De una botella de 4 l se utilizaron 2 4/5. ¿cuánto aceite queda?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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