A grocery store sells three different quantities of sugar. A 1-pound bag costs $1.05, a 2-pound bag costs $1.90, and a 3-pound bag costs $2.82. Enter the unit cost in price per pound for each. Complete the
description about how the unit cost changes as the quantity of sugar increases.

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?