If earth was 10 times farther away from the sun than it is now, which planet would it be closest to? (assume all the planets are aligned with the sun and are on the same side of the sun.) compare earth's new distance to that planet. how far apart would they be in standard notation? how far apart in scientific notation? show your work.

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?