Final Answer
$93.9$
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Step-by-step Solution
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1
Multiply $1$ times $639$
$30+\frac{639}{10}$
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$30+\frac{639}{10}$
Learn how to solve problems step by step online. Factor by completing the square 30+(1*639)/10. Multiply 1 times 639. Divide 639 by 10. Add the values 30 and 63.9.
Final Answer
$93.9$