Answer:
A and C
Step-by-step explanation:
A. 2.3+(-2.3) is = to 0
B. (-3.7)+(-4.1)= -7.8 - not Positive
C. -2.6-(-12/4)= -2.6 +3=0.4- is Positive
D. 5/2+(-2.5)=0 not negative
E.72-(-100)=72+100=172 not negative