I am stuck on that same question. I can figure it out and work out the problem and then i can tell you what i got and you can tell me what you got. I think i have the answer but im not really sure about it so let me see what i can do and i will for sure tell you the answer once im sure about it:) ALso it might take me a while because i want to take my time on it so i dont give you the wrong answer
:) hope i can help you solve this problem