Answer:
Step-by-step explanation:
11c-12-2c=6
Combine like terms:
9c-12=6
+12 +12
9c= 18
c= 2
A. $296.06
$399-30%= $399*0.7= $279.30
$279.30+6%= $279.30*1.06= $296.06
19.5cm2
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