The manager at the concession stand offers drinks for sale at nine different prices. The manager recorded the price each time an item was sold in a three-hour time period and created a dot plot to display the data.

Items sold at the concession stand

Describe the data from the dot plot.

How many total drinks were sold in the three-hour time period?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?