1. the point (-7, 1) when reflected across the origin maps onto
o a. (7,-1)
o b. (1, -7)
oc. (7, 1)
,7)

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?