The ratio of Beatriz, Hannah, and Julia's savings are 7:12:18. The three girls have a total savings of $111. How much more money has Julia saved than Beatriz? I NEED THE ANSWER ASAP!!!!!!!

Answer 1

let their savings be 7x, 12x, and 18x

then: 7x + 12x + 18x = 111
solve for x, then sub back into the above definitions.