Someone help me with these math questions

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? will mark the

For how answer my question this will be the last question can you answer in math subject

What is the average rate of change for this function for the interval from x=2 to x=4 ?