Four of the interior angles of a seven sided polygon are 114, 150, 160 and 170 degrees. The other three interior angles of this polygon are equal. Calculate the size of each of the other three interior angles

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?