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Use the steps below to answer questions 4-5.

Step 1: 2/3 (15a+27b+9a-12a)


Step 2:10a+18b+6a-8a


Step 3:10a+18b+(6a-8a)


Step 4: 8a + 18b


4.Which property below is used between Steps 1 and 2?

A.Associative property

B.Commuatative property

C.Distributive property

D.Identity property


5.Which property below is used between Steps 2 and 3?

A.Associative property

B.Commuatative property

C.Identity property

D.Inverse property