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Step-by-step explanation:
Answer:
18000
C. II only
7(12/7) + 8 > 20 : 19.97 > 20; wrong
7(2.5) + 8 > 20 : 25.5 >20; right
7(-3) + 8 > 20 : -13 > 20; wrong
X=3 and X=-7 . Hope this helps:)