Which expression is equivalent to 5x + 7y?
a) 5y + 7x
b) 7y + 5x
c) 7y(5x)
d) 12xy

Which of the following is not a subset of {1,2,3}?

A50% increase followed by 33 1/2% decrease

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?