Exchanging US dollars to Great Britain Pounds

Exchanging US dollars to Great Britain Pounds...?
My friend is going on a trip to London and I asked if she would exchange some money for me so I could have it as a souvenir. What is a good amount to give her? I'm not going to give her a lot of money, I was thinking probably just a couple of dollars, but what would that get me? Like the dollar breaks down into quarters and dimes etc, but how does the currency in London work?
London - 1 Answers
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in coins we have £2, £1, 50p, 20p, 10p, 5p, 2p and 1p ... that adds up to £3.88 which converts to $6.19 at today's rates after that there are £5, £10, £20 and £50 notes but I think that is larger than your budget

How Would You Work Out This Maths Problem

How Would You Work Out This Maths Problem?
In 1933 the population of Great Britain was 4.5x10 (with a little 7 at the top right hand) Calculate the percentage increase in the population of Great Britain from 1933 to 2003
Mathematics - 2 Answers
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The problem is not complete
2 :
how much did the population increase from 1933 to 2003??so do you have to just multiply the the population times the years or something

Would like a like job some place warm in Europe, I am from Great.Britain, male 22, Would do any job

Would like a like job some place warm in Europe, I am from Great.Britain, male 22, Would do any job,,,?
Need free accomidation and a wage, I enjoy hard work. Any ideas, advise Welcome
Other - Europe - 1 Answers
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1 :
a club rep sounds like the job for you, as long as you like a party atmosphere, confident, out going etc. You would probably get free/cheap accomadation. You could work in greece, spain etc.