It says one pound of horse hair is divided into pulls to make horse hair belts. one pull weighs about 0.011 ounces. how many pulls could be made from 6 pounds of horse hair?

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?

Asequence is a function whose is the set of natural numbers

Which of the following is the sum of 3 1/6 + 6 3/8?