For numbers 9-12:
Perform the indicated operation.
9. 24 - (+12) =
A. 12
B. 36
C.-12
D.-36
10. -420 20 =
A. 21
B. -21
C.-420
D.420
11. 12 x (-12) =
A. 144
B. - 144
C.-24
D.24
12.-255 + -35 =
A. -290
B. 290
C.220
D.-220
positive and negative expression pls answer this question
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Answer:
9.A
10.B
11.B
12.A
Step-by-step explanation:
True yan