Select all the true statements.

A. 2.3 + (-2.3) is equal to zero

B. (-3.7) + (-4.1) is positive

C. - 2.6 - (-12/4) is positive

D. (5/2) + (-2.5) is negative

E. 72 - (-100) is negative

A, and C

Step-by-step explanation:

A. 2.3 + (-2.3) ➡ 2.3 - 2.3 = 0 so this option is correct

B.-3.7 + (-4.1) ➡ - 3.7 - 4.1 = - 7.8 so this option isn't correct

C.-2.6 - (-12/4) ➡-2.6 + 3 = 0.4 this option is also correct

D. (5/2) + (-2.5) ➡ 5/2 - 5/2 = 0 this one would be undefined because we can't divide 0 by 2 or any other rational numbers

E. 72 - (-100) ➡72+100 = 172 is positive not negative therefore this option is incorrect