Answer:
Commutative Property of Addition
Step-by-step explanation:
Commutative Property of Addition states that changing the order of the addends will not change the sum of the addends.
In this case, the addends are 5 and 4. We can see that even after changing their order (from 5 + 4 to 4 + 5), the sum of the two addends will still be 9.
I hope this helps.
