Respuesta :

4. B 5.A
:3 :3 :3 :3 :3
For number 4.
A is not true. 4 + (-2) = 2. -5 - 7  = -12.
B is not true. 8 - (-1) is 9. 11 - 4 is 7. 
C is true. 5 + 3 = 8 . -1 - (-9) = 8.
D is not true. -6 + -1 is -7. 2 - (-5) is +7.