Which pair of expressions are equivalent?
34+5-9v+2 and - 6v+6
-6n+3-2n+2 and -bn+6
-4n+8+9n-2 and 5n+6
10n-5-2n+3 and 5n-2

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?