Which measure is a measure of center? mode, interquartile range, range, mean absolute deviation, quartile

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

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?