Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form.

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

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?

Math it's appreciated. (picture provided)