On a certain hot summer day, 511 people use the public swimming pool. Daily prices are $1.50 per child and $2.00 per adult. The receipt for admission totaled 854.50$ how many children and how many adults swim at the public pool that day?

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