Find the output, bbb, when the input, aaa, is 666. b = -1-7ab=−1−7ab, equals, minus, 1, minus, 7, a
b=b=b, equals

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?