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Algebra

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Convert from Exponential to Expanded Form

ALGEBR-GCWE65

Which best shows an equivalent expression to $7^3$?

A

$7+3$

B

$7\cdot3$

C

$7\cdot7\cdot7$

D

$3\cdot3\cdot3\cdot3\cdot3\cdot3\cdot3$