27. 75 x 1 = 75
28.6 x 5x3 = 45
29. (5 x 4) + ( 2 x 9) = 38
30.2 x 4 = 4x2

Answer:
26.Zero
27 . Identity
28.Distributive
29.Associative
30.Commutative
Sana makatulongg :)))