Picture is listed. directions say "determine whether the two expressions are equivalent. if so, tell what property is applied. if not, explain why."

You just have to expand the expressions.
For the first one, 72-(63-8) = 17 (brackets first, so 72-(55) which is 17)
and (72-63)-8 = 1, so they are not equivalent. The reason why they aren't equivalent is because the brackets are around different parts of the equation, so you are solving it differently and getting a different result. 

Wish I could help but the picture is not pulling up sorry!