What is 2431÷8 I need to know

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

What number is 7 units left of -15?