£ = symbol used to represent the "pound" in the same way "$" is used to represent a dollar.
It's not really that different from US money, where the US has "Dollars" ($) & "Cents" (¢), Great Britain (England, Scotland & Wales) has "Pounds"(£) & Pence(p).... 100 pence = 1 pound, written £1.00 (can skip the .00 if there isn't any pence)..... 150 pence = 1 pound 50 (£1.50).
£185 = 1 hundred and 85 pounds....... in US money, the Exchange rate varies, and you can find out the latest here:
http://www.xe.com
At the current exchange rate, £1 = $1.66 US Dollars and $1 US Dollar = about £0.59 (59pence).
So at that exchange rate, £185 = $308.36
and just to completely explain it, England money comes in these versions:
Bank Notes, or "bills" as you'd call 'em (issued by the "Bank of England"), come in denominations of:
£50 - rarely seen, only used for business transactions mostly
£20 - seen more often on the street, highest denomination ejected from most ATM's.
£10 - another of the more common seen (and the lowest denomination issued by most Cash Machines).
£5 - the lowest denomination bank note now available in England, though not that often seen these days because everyone's wages & benefit payments get paid directly into their bank account and the only way they can usually withdraw smaller amounts is via the ATM's which only issue the £10 & £20 notes..... suppsoed to be a massive stack of them as high as a skyscraper in recent years 'cos the bank of england couldn't shift 'em for this very reason.
http://www.bankofengland.co.uk/banknotes/
Coins (issued by the ROYAL MINT), some of the finest & best crafted in the world......
£2 coin (the highest denomination in General use)
£1 coin
50p coin (half a £1 coin)
20p coin
10p coin
5p coin
2p coin
1p coin (the lowest denomination)
Also available...
£5 (Crown) coin - legal tender, but created in limited batches as a celebratory coin for collectors.
Sovereign, Half-Sovereign & Quarter-Sovereign... extremely rare & sought after, and among the most expensive in the world, made from pure gold bullion - our equivalent to the US "Golden Eagle", Canadian "Gold Maple Leaf"(?) & South African "Krugerrand".
"Silver Britannia"... our other most expensive coin, minted from Silver Bullion... our equivalent to the US "Silver Eagle" bullion coin.
http://www.royalmint.com/Corporate/facts/coins/TwoPoundCoin.aspx
http://www.24carat.co.uk/britishorenglishcoins.html