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In line "750 INPUT NUM: PRINT 7.3*NUM*NUM+15" of a BASIC program, '7.3*NUM*NUM+15' is

  • A.an exponent
  • B.an expression
  • C.a fixed identifier
  • D.reserved identifier

Answer: B

Correct answer: an expression

7.3*NUM*NUM+15 combines constants, a variable and operators to produce a value, which is what an expression is. An exponent is a single power and an identifier is a name.

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