Ally is making a scale diagram of her classroom. she uses a scale factor of 3 centimeters per foot to draw the diagram. the actual length of the classroom is 18 feet, and its width is 20 feet. what is the area of the scale drawing of the classroom?

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?