Which expresion is equivalent to 15+ 80 ?

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?

Plot the intercepts to graph the equation

What does the sign of the slope tell you about a line?