What is the value of the product (3 – 2i)(3 + 2i)?

If m 17 27 90 63 ** picture is attached

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?

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73