(a) Jeffrey and Sara were building a sand castle. They decided to make it into a cone shape. After some time, the diameter of the sand shaped cone was 10 in and the height was 10 in. What is the
exact volume of the sand cone? (Show your work. Remember you can draw a picture to help you solve the
problem
Pls I need this answer ASAP

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents

I’m confused on how to work the pie charts

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables