A breakfast cereal is made of oats,nuts,And raisins.The advertisement boast that 30% of the cereal in each box is raisins.

1)What portion of each box is not raisins
Answer:70%
2)If each box contains 8 cups of cereal,how many cups of raisins are in each box?
Answer:2.4
3If the box contains 2 cups of nuts,What percentage of each box is nuts