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▹ Answer
<em>$49,980</em>
▹ Step-by-Step Explanation

Hope this helps!
CloutAnswers ❁
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You simply divide 678 by 3 and get 226.
A=3
B=4
C=5
Substitute 3 in for 'a' in the equation, and 5 in for 'c' in the equation to get 17.