The triangular prism shown below is 6 cm wide and 4 cm deep. the vertical height is 7 cm. what is the length of the side edge, s, of the triangular prism? round your answer to the nearest tenth.

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?