Amodel of a volcano has a height of 12 in., and a diameter of 12 in. what is the volume of the model? use 3.14 to approximate pi, and express your final answer as a decimal.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

What is always true when two whole numbers are subtracted?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.