Crossword Puzzle

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Across
  1. 4. A worldwide system of computer networks
Down
  1. 1. An all-in-one app that lets you pay bills, recharge and make payments
  2. 2. To look at something carefully, with the eyes or with a machine, in order to get information
  3. 3. A printed or written statement of the money owed for goods or services.
  4. 5. An amount added to something in order to raise it to or maintain it at a desired level