C. It is always a rational number. You cannot determine its sign without knowing the values of a and b.
Answer:
12+(-38)+27= 1
Step-by-step explanation:
When a positive is multiplied by a negative, the sign becomes negative. Therefore, 12+(-38) becomes 12-38. So 12-38+27= 1.
Answer:
2
Step-by-step explanation:
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