Look at shape III in graph 2. Is there a dilation that maps shape Il onto shape III? If so, what is the scale factor and is it an enlargement or a reduction?

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?

Is the figure congruent? yes or no?

Find the slope of the line passing through a pair of points