The term (2-3)(6+9) is equivalent to which of the following?

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)

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Find the area of a parallelogram with base 15 yards and height 21 2/3