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MrRa [10]
4 years ago
5

What is 9 and 10? What's the CORECT answer?

Mathematics
1 answer:
rewona [7]4 years ago
4 0
9. C, because subtracting a negative number "changes" the sign to +
10. C, for the same reason.  The equation could be rewritten as -4.2+6.9, which equals 2.7
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