Ana sent her mom 60 texts in july, which is 60% fewer texts than her mom sent dana that month. how many total texts did they exchange in july?

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.

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Asphere has a diameter of 10 in. what is the volume of the sphere?