Astudent measured the temperature of boiling water and got an experimental reading of 97.5 what is the percent error?

Which system of linear inequalities is represented by the graph?

Which of the following graphs could represent a quartic function?

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?