Where is the blue point on the number 0 0 4 4 − 4 −4 ?

What is the number 321,000,000 in scientific notation? also what is the number? ?

: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?

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.