The table gives the amount of data used by male and female users of smart phones each month.
Round each answer to the nearest thousandths.

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?

Find the domain of the following expression: 1/(√x)-2

Factor the expression using gcf 9b+45