Aportion, segment, or piece of a whole is called a _

Write the expression 7x^3-28xy^2 as the product of 3 factors

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

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?