If u = 5 inches, v = 7 inches, w = 2 inches, x = 6 inches, y = 12 inches, and z = 3 inches, then what is the perimeter of the object

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?