Respuesta :

1. B
2. D I'm not sure about this one
3. A
4. C
5. C
6. B
7. -9
8. 1
9. -2
10. 5
Hope this helps! I'm sure about all except for number 2!
peted170
For all of them? If you need me to explain any of these please ask!
1. B
2. D (you can never divide by zero)
3. A
4. C
5. C
6. B
7. -9
8. 1
9. -2
10. 5 something minus a negative number turns it into addition. 

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