chemistry

solve the following and express your answer in scientific notation: (5.3 x 10^4) + (1.3 x 10^3)

A. 5.4 X 10^4
B. 5.4 X 10^8
C. 6.6 X 10^7
D. 6.9 X 10^7

I say c

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asked by drew
  1. I think you need to look at this again.

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  2. whoops D

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    posted by drew
  3. Yes.

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