Sam is 10 years younger than one-half the age of his aunt. let a represent his aunt’s age. which shows his aunt’s age written as an algebraic expression and sam’s age if his aunt is 40?
sam is 2 years old
sam is 6 years old
sam is 10 years old
sam is 30 years old

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