R=8+I
S=4R
R+I+S=112
R+R-8+4R=112
6R=120
R=20
So therefore, Ruby worked 20 hours, Svetlana worked 80 hours, and Isaac worked 12 hours.
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Answer:
the think the answer is €170
because 15000+20/100
<h2> = <em>1</em><em>7</em><em>0</em></h2>
Answer:
quadratic i think
Step-by-step explanation:
