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OLga [1]
3 years ago
12

Solve:-(-9) = 2 A C= -13 23 C= 2. B C C=-22 D C=5​

Mathematics
1 answer:
IRISSAK [1]3 years ago
7 0

Answer:

it is 2b that is the answer

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Robin has 10 books. Thère is enough space on a shelf for 4 books. In how many ways can 4 of the 10 books bearranged on the shelf
sveticcg [70]

If the 10 books are all different, we have:

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