Posted by **shana** on Wednesday, November 7, 2012 at 4:07pm.

Solve the following and express the answer in scientific notation: (5.3 x 10^4) + (2.2 x 10^3)

A. 5.5 x 10^4

B. 7.5 x 10^3

C. 7.5 x 10^7

D. 11.7 x 10^7

I say A

- math -
**Steve**, Wednesday, November 7, 2012 at 4:17pm
correct.

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