Oh and can you guys or girls show the working please.Thanks

Are you asking about this question?

http://www.jiskha.com/display.cgi?id=1357600552

Yes

What don't you understand about what I showed you in that post?

Of course! I'm here to help you and also provide the working or explanation behind the answer. Whether it's solving a math problem, understanding a concept, or finding information, I'll do my best to explain the steps or methods involved. Just let me know what you need assistance with, and I'll be happy to show you the working or provide a detailed explanation!