I saw the image.
Bread = 1 pound
1 fluid once of water weight about 1 ounce.
1 liquid gallon = 127.998 ounce or 128 ounces
1 pound = 16 ounces
128 ounces ÷ 16 ounces/pound = 8 pounds
Since 1 loaf of bread weighs 1 pound and 8 pounds is equal to 1 liquid gallon of water then, 8 loaves of bread equals the weight of 1 gallon of water.
