what I did does not matter as I added the image of the question . I only write that part for indicating I tried to solve it for a while before posting.My crystal ball is in the shop, so I can't peer into your mind and figure out what you did or where you went astray. This is why we require you to show your work.
I get it what did you say now after reading your post but still I don't how to solve this. I dont need any help with calculations. I just need to learn how to approach this question.My crystal ball is in the shop, so I can't peer into your mind and figure out what you did or where you went astray. This is why we require you to show your work.