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  2. How to redeem a Roblox gift card by crediting your account - AOL

    www.aol.com/news/redeem-roblox-gift-card-2...

    Once you've decided what you want to buy on either the Membership or Robux page, here's how to use your Roblox gift card to make the purchase: When you see the option to select a payment type ...

  3. Xbox 360 technical problems - Wikipedia

    en.wikipedia.org/wiki/Xbox_360_technical_problems

    Although discs scratched by the Xbox 360 are not covered under its warranty, [40] Microsoft's Xbox Disc Replacement Program [41] will sell customers a new copy of discs scratched by the Xbox 360, if they are published in countries where the Xbox was originally sold, at a cost of $20. [42] The published list of games that qualify, however, is ...

  4. Envy-free item allocation - Wikipedia

    en.wikipedia.org/wiki/Envy-free_item_allocation

    Envy-free (EF) item allocation is a fair item allocation problem, in which the fairness criterion is envy-freeness - each agent should receive a bundle that they believe to be at least as good as the bundle of any other agent. [1]: 296–297 Since the items are indivisible, an EF assignment may not exist.

  5. Card security code - Wikipedia

    en.wikipedia.org/wiki/Card_security_code

    There are several types of security codes and PVV (all generated from DES key in the bank in HSM modules using PAN, expiration date and service code): . The first code, 3 numbers, called CVC1 or CVV1, is encoded on track one and two of the magnetic stripe of the card and used for card present transactions, with signature (second track also contains pin verification value, PVV, but now it is ...

  6. Scratchcard - Wikipedia

    en.wikipedia.org/wiki/Scratchcard

    To win an amount of money in this scratch game the player has to find it three times under the scratch area. A scratchcard (also called a scratch off, scratch ticket, scratcher, scratchum, scratch-it, scratch game, scratch-and-win, instant game, instant lottery, scratchie, lot scrots, or scritchies) is a card designed for competitions, often made of thin cardstock or plastic to conceal PINs ...

  7. Bill Morgan lottery win - Wikipedia

    en.wikipedia.org/wiki/Bill_Morgan_lottery_win

    While being filmed scratching off another card inside the shop he turned around, held up the ticket and said "I just won 250,000. I'm not joking. I just won 250,000." before holding his head in his hands and asking the news team "please don't film me". He then said "I don't believe this is happening. I think I will have another heart attack."

  8. Torsion-free module - Wikipedia

    en.wikipedia.org/wiki/Torsion-free_module

    Over an integral domain, every module M has a torsion-free cover F → M from a torsion-free module F onto M, with the properties that any other torsion-free module mapping onto M factors through F, and any endomorphism of F over M is an automorphism of F. Such a torsion-free cover of M is unique up to isomorphism.