#### Answer

C

#### Work Step by Step

$3v+c=22$
$2v+4c=28$
$3v+c=22$
$c=22-3v$
$2v+4(22-3v)=28$
$2v+88-12v=28$
$-10v+88 = 28$
$-10v = -60$
$v = 6$

Published by
Prentice Hall

ISBN 10:
0133500403

ISBN 13:
978-0-13350-040-0

C

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