What’s the percent of change of 100 acres to 140 acres

Which system of linear inequalities is graphed? can somebody pleasssse

Find the solution of each of the following.

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?