well the truth is, everytime i comeback to this question i feel discouraged to continue because i really don't understand how to approach the question and then of course solve it. Normally the textbook has some sort of answer i can use to work backwards with, but seeing as it's a bonus question...
Please Refer to the attachment, I'm new to the forums and am not sure how to type Math Terms.
I've been working on this for a couple of days now and i can't get anywhere near an answer.
Any Help is MUCH appreciated! Thanks!