The jade restaurant has a large aquarium on display in its lobby. the base of the aquarium is 5 feet by 2feet. the height is 4 feet. how many cubic feet of water are needed to completely fill the aquarium?

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?