In order for the sales team to give the impression to their company that there was a large increasse in sales over a six month time period, they need to create a graph that have time period as the label of their x-axis or the horizontal label and sales as the label of their y-axis or the vertical label.
What happened in the first questions doesn't influence the final question, so the probability is simply 1/5 = 0.2
120km.
Speeds that are travelling towards each other may be added together since we are looking for a total distance traveled.
The tip should be $2.82, making the entire payment $21.62

Using this formula and plugging in the points, we get: