Big apologies to remote. I converted the 5 ft or so into inches then divided it into the 18 without converting via 12 inches. Not bad for a finance specialist, eh!!!! clingo, it is possible to go negative.....witness Taff who hasn't scored yet but has picked up penalties for failing to predict three times in a row. Then again, given where he lives, I suspect he has scored many more times than the rest of us put together!!!! it might explain why he hasn't predicted too......too busy elsewhere!!!!
Oh I'd moved on from maths when I replied to remote. I took his question as more of a request and replied in the negative to meet his requirements. Now, if you understand that, please explain it to me. If you don't know wtf I'm talking about, then welcome to my world