Answer:they need to buy 27 boxes of plates.
Step-by-step explanation:I do not like expaining things.
The property shown is commutative multiplication. This property says that the product of two factors is not affected by the order in which they're multiplied. In this case, the product remains the same i.e., 2*8*5 = 80 while 2*5*8 <em>also </em>equals 80.