A six-sided number cube is labeled with the numbers 1-6, one number on each face. Each number is used exactly once. How many possible outcomes exist when the cube is rolled two times?
6
8
12
36

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?