Can someone help?
Its for a test

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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?

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?