Bicycle wheel is 15 inches in diameter. how much is covered on one rotation of the wheel

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

Which value of c would make he following expression completely factored? 8x+cy

How do i do this? i don’t understand