What is the speed limit in miles per hour (sign reads 55km/h) PLS HELP ASAP ILL MARK BRAINLIEST

Arrange these numbers from least to greatest 3/5 5/7 2/9

Can (2,3 and square root 10) be sides ona right triangle?

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?