Question

Indicate which property is illustrated in Step 2.

Step 1 5 + (3 + 9) + 0 = 5 + (9 + 3) + 0
Step 2 = (5 + 9) + (3 + 0)
Step 3 = (5 + 9) + 3
Step 4 = 14 + 3
A. identity property of addition
B. associative property of multiplication
C. associative property of addition
D. commutative property of addition

Answer 1

is it a

Answer 2

@campbell_st

Answer 3

plz help is it a

Answer 4

@campbell_st