one year after robin deposits robins deposits $400 in a savings account that pays r% annual interest how much money is in the account? Write an expression using the variable r.

What fraction of one year is 8 months

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

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