#### Answer

$8$

#### Work Step by Step

$_nC_r=_nC_{n-r}$ $\Rightarrow _{12}C_4=_{12}C_8$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$8$

$_nC_r=_nC_{n-r}$ $\Rightarrow _{12}C_4=_{12}C_8$

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