Answer:
1. d
2. c
3. b
4. a
Step-by-step explanation: use PEMDAS to solve
1.
5+
-3(6)/3
5+4-18/3
9-18/3
9-6
3
______________________________________
2.
-(
-12)+4/2
-(9-12)+4/2
-9+12+4/2
-9+12+2
3+2
5
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3.
7 *
/4+12
7 * 4/4+12
28/4+12
7+12
19
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4.
+4-3
36+4-3
40-3
37