Which expression is equivalent to (x y) z?
(x + y) + z
2 z (x y)
x (y z)
x (y + z)

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

1: 4 if the wew 35 surfboards at the beach how many were short boards?

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?