$9.95, $19.95, or $34.95 in USA Currency. The lower the price, the less the upgrade time or less Adventure Coins.
Yes, IE 5.0 will work on Windows Xp. You might want to upgrade to IE 7.0 or 6.0.
It is a fake card; ie, it is not an authentic Yu-Gi-Oh product, even if counterfeiters have printed it into a physical card.
Divide Sales Price by 200% (ie 2). So cost is half of sales price.
Yes. As with all previous expansions, you must have the expansion before in order to upgrade to the current expansion. IE: you need Vanilla WoW, Burning Crusade, and Wrath of the Lich King on your account in order for you to upgrade to Cataclysm.
20 is 80/100 of original price, ie 4/5 so original price was 25.
Nothing. It is a fake card, ie, it is not an authentic Yu-Gi-Oh product, even if counterfeiters have printed it into a physical card which some people own.
Yes if they have some form of paying. IE debit card.
If the card is not for a specific item (ie -"this card is good for one large coffee and a bagel at Sam's Baegl Hut"), the the card is considered a cash equivalent, and it taxable at face value.
There must be a constant and there must be a consistent price differential for that constant. IE, by age, sex, religion, ethnicity, etc.
It all depends on rarity of the card ie. common, rare, super rare etc. and the edition ie. yugi's starter deck, packs etc. I'd say a couple of pounds
A Mastercard number has sixteen digits in groups of four. ie; 1234 5678 8765 4321
160 is therefore 60%, so original price was 160 x 10 / 6 ie 1600/6 = 266.67