Which situation could be represented by 1.25 x 6 = 7.5?

-it took calvin 1.25 hours to run 6 miles. he ran 7.5 miles per hour.

-sara read for 1.25 hours each day for 6 days. she read for a total of 7.5 hours.

-matthew addressed 1.25 envelopes in 6 minutes. he addressed 7.5 envelopes per minute.

-it took beth 1.25 minutes to paint 6 feet of board. she painted a total of 7.5 feet of the board.

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?