Help me out please I’m begging

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

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?

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12