I need to know the answer and how you got the answer

Theres different ways to do it....
way 1: 48+6=54
way 2:9 times 6= 54
So let's say they have an even amount of ribbons, then they both have 27, so is we take 3 from Sue and give them to Katie. Because Sue has 3 less ribbons and Katie has 3 more, that makes a difference of 6 between Katie and Sue.
I hope I helped, as an Ambitious rank, a Brainliest mark would mean the world to me. Now go get an A on that assignment!