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9 October, 16:00

Which one of the following represents a valid Variable name?

a. 2A

b. $2

c. d+4

d. d 4

+2
Answers (1)
  1. 9 October, 17:27
    0
    b. $2

    Explanation:

    a. 2A is not a valid variable because variable names cannot begin with a number.

    b. $2 is valid because variable names can begin with $ or _ characters.

    c. d+4 is not a valid variable because variable names can only contain letters, numbers, underscores, or dollar signs. (+) sign is invalid.

    d. d 4 is not a valid variable because variable names cannot contain spaces.
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