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1 vote
(3 x 103)(7 x 106)

a
2.1 x 1010

b
2.1 x 109

c
2 x 1010

d
21 x 109

User Keveman
by
7.9k points

1 Answer

3 votes

Answer:

b

Explanation:

User Mykiwi
by
8.1k points
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