SMART PEOPLE, I NEED HELP PLEASE IM STRUGGLING

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

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?