Answer:
a) inverse property
b) commutative property
Step-by-step explanation:
Property for Addition:
a + b = b + a - commutative
(a + b) + c = a + (b + c) - associative
a + (-a) = 0 - inverse
a + 0 = a - identity
We have:
a) 13 + (-13) = 0 → inverse property
b) (-12) + 16 = 16 + (-12) - commutative property
