Barton wants to know how much his packed suitcase weighs before he leaves to catch a flight. the airline will charge an extra fee if his suitcase weighs more than 50 pounds. which method should barton use to get the most accurate and appropriate measurement?

I am no expert but what I have done, in the past, and others that I know have done; You stand on the scale weigh yourself, then pick up your suitcase and hold it very still, while still holding it stand on the scale and then subtract your weight from the total.