Answer:
C is your answer.
Step-by-step explanation:
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(-5/6)+(-5/6) have the same denominator (number at bottom of fraction), so all you have to do is add the numerator(top number). So -5 +-5 =-10 . Now you have -10/6, which simplifies to -5/3.
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Then c = 22 just keep adding 7
8+7=15 15+7=22
