Nick says that the number 751 rounded to the nearest hundred is 750. Explain Nicks error and the correct way to round to the nearest hundred. Find the correct rounded number.

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