Evaluate m+n for m = 9 and n=7

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Why is studying fractions important

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?