Todd is saving for a vacation. the cost of his vacation is 1,089. todd has a year to save the money. about how much does he need to save each month to reach his goal

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?