Given the area of a square is 225 sq ft what is the length of each side?

Which expression is equivalent to sq-80

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

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?