Step-by-step explanation:
and
are linear pair angles.

Answers:
a= 5x±
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6
u=± 
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2
<h2>Brainliest please!!!! It took me a while to figure this out!</h2>
1) $450/12=$37.50
2)$37.50x3=$112.50
The answer is: $112.50
I hope this helps