Algebra-1

A. The identity property of addition states that adding zero to any number does not change the value of that number. In other words, for any number a: a+0=a

This property highlights that zero is the additive identity because it leaves other numbers unchanged when added to them.

B. The equation  7 + 1 + 2 = 1 + 2 + 7 demonstrates the commutative property of addition. This property states that changing the order of the addends does not change the sum.

So the correct answer is:B. Commutative property

C.The associative property of addition states that the way in which numbers are grouped when...