Evaluate (3.0times 10^1 – 2.8times 10^{-1})leaving the answer in standard form

Evaluate (3.0times 10^1 – 2.8times 10^{-1})leaving the answer in standard form
  • A.
    (2times 10^{-1})
  • B.
    (2times 10^{2})
  • C.
    (2.972 times 10^{1})
  • D.
    (2.972 times 10^{2})
Correct Answer: Option C
Explanation
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