The answer to your question is c)15
Answer:

Step-by-step explanation:
−2|x| < −8 ↷
−2x > 8 −2x < −8
___ __ ___ ___
−2 −2 −2 −2
OR 
Whenever you multiply\divide by a <em>negative</em>, you reverse the inequality symbol.
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Answer:
B : y=5/6cos(pi/30x)+9
Step-by-step explanation:
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