Help What answer is it 1st 2nd or 3rd or 4th

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 expression is equivalent to (2x-1)(x-3)?

True or false? a circle could be circumscribed about the quadrilateral below.