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i need some help with 7-8-9

7. Perform the operation and write your answer in scientific notation.

2.4 x 10^-9
——————
8x10^6


8. Perform the operation and write your answer in scientific notation.

(5x10^8) - (3.4x10^8)



9. Perform the operation and write your answer in scientific notation.
(3 x 10-8) + (2x× 10-6)

i need some help with 789 7 Perform the operation and write your answer in scientific notation 24 x 109 8x106 8 Perform the operation and write your answer in s class=

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