avamarvelle
avamarvelle
16-03-2018
Mathematics
contestada
I need to know the answer
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Wuubles
Wuubles
16-03-2018
A signed number is a number with either a + sign or a - sign.
When something is gained, it means in gets more, so that would be its adding on 9 pounds. So, the answer is +9.
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