Question

I need help with the following question:

(2 + p)(r+ 9) = (r + 9)(2 + p)

Is this communtative property?

Thank you very much for all your help.

Answer 1

yes. commutative property of multiplication

There is also a commutative property of addition, which could be written as

(2 + p)(r + 9) = (p + 2)(9 + r)