Can someone help with this problem?

Icould really use some with this question.

Can someone me with the property questions for 12 13 and 14 plz

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?