What property is being illustrated in the statement: (12 +23) +37= (37 +23) + 12 ?
A. closure
B. commutative
C. associative
D. distributive
The symbol written on top of the number to show that it is the repetend?
a. slash
b. hyphen
c. dash
d. vinculum
Find the sum of (+8) + (-12) + (+3) +(-4).
a. +27
b. -27
c. +5
d.-5