Victor bought 15.6 pounds of paintballs. all together the balls cost 35.99 . about how much did the paintballs cost per pound

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

What are two numbers that have a sum of 15?