Classify the triangle

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

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?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?