Answer:
Look below
Explanation:
I'm not sure what the question is, but if you're looking for what percentage of the coin is nickel or copper, you can multiply 25 by 4 to get to 100%. Then multiply 9 or 16 by 4 and you get 36 or 64. Therefore, there is 36% nickel in the coin and 64% copper. Let me know if this was your question! :)