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Translate each of these situations into a variable expression such as those found in a magic number chart.

  1. Pick a number and multiply it by .

    Use x to represent the number you pick.

    What would the expression look like if you multiplied your number by ?

  2. Pick a number and divide it by .

    See (a).

  3. Pick a number and reduce it by .

    What happens to a number when you reduce it by ?

    See part (a).

  4. Pick a number, add , then multiply by .

    See part (a).