which is an Associative Property

5+6+2=2 + 5 + 6

7 + (3+4) = (7+3) + 4

3 (4+5) = 12+15

The associative property can be represented by the equation:

(a + b) + c = a + (b + c)

From the given options, the equation "7 + (3+4) = (7+3) + 4" represents the associative property.