Kaitlyn can run 1.35 miles in 12 minutes. What is her running speed per hour?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Me n o w. i need t h i s. 10 points

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?