WILL Mark brainliest Which statement shows the associative property of addition?

13⋅(k⋅5)=(k⋅5)⋅13

13⋅(k⋅5)=(13⋅k)⋅5

13+(k+5)=(13+k)+5

23+6y=6y+23

The term 'white man's burden" refers to the difficulty of converting colonists to christianity. the belief that europe had a duty to civilize other people. the conviction that white people were superior to all others. the struggle to survive in an increasingly industrialized world.