name the property shown by each statement

Question

9. 34+42=42+34:commutative
10. 8x(53+12)= (8x53)+(8x12): distributive
11.1/16x16=1: inverse property
12.16x(5x15)=(16x5)x15 : associative
13. 2/5x5/3=5/3x2/5:commutative