The UK has opted out of the Euro for political and economic reasons.
Yes, but not US cents. Spain is part of the eurozone in the EU so they use the euro as their currency. The euro is divided into 100 (euro-)cents.
Denmark did not leave the EU. It is still a member. It does not use the Euro, but that does not mean it is not in the EU. Some other EU countries do not use the Euro. Only 19 of the 28 member countries use it.
England, or more correctly, the UK are members of the EU. Though they are not part of the European exchange mechanism and do not use the Euro as currency.
Hungary joined the EU in 2004, but has not yet joined the Euro currency.
Montenegro and Kosovo are countries that are not in the EU but use the Euro (Kosovo also uses the Serbian Dinar)
The euro is the current Italian currency. Italy is a member of the European Union. Use of the euro isn't a requirement of EU membership. For example, Sweden is an EU member that doesn't use the euro. Italy is an example of an EU member that does.
17 of the 27 members of the European Union use the Euro, so it could not really be said the EU is united under the Euro.
Scotland is part of the UK and the UK government has decided to remain financially independent and not become part of the Eurozone.
As of the 1st of January 2014, 18 of the European Union's 28 countries use the euro.
No. There are 27 members of the European Union. Only 16 of those use the Euro.
It doesn't. Switzerland is not in the EU, so it cannot join the Euro area.
It looks like the Euro, Italy is part of the EU (European Union) and they all use the same currency