Question

Easy question!!!
Which property justifies this statement?

r(s + t) = rs + rt

A.
associative

B.
distributive

C.
symmetric

D.
transitive

Answer 1

Which one would you first-guess it is?

Answer 2

Haha this is my little sisters math question. She thinks A.

Answer 3

I think its b

Answer 4

That's not correct; associative property is an axiom that states if we have a sum associated to another, we can associate any term:
\[a+(b+c)=(a+b)+c\]

Answer 5

Now shes saying B.