Help. Got this answer wrong earlier. :'|

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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?