From 1981 to 2001, which change was most likely happening in the US economy? a decrease in spending by consumers an increase in the number of workers an increase in spending by consumers an increase in government intervention in the economy

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?