Question

What expression is equivalent to 9(4 + r)?

Answer 1

36+9r
by multiplying 9 &4 you get with 36. countinue multiplying and you also get 9r

Answer 2

An expression equivalent to 9(4 + r) is 9 * 4 + r because the number on the outside of the parenthesis just means to distribute, which is multiply.