Pls help me! In the following diagram, HI is parallel to JK. What is the measure of X?
Angles are not necessarily drawn to scale.

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)

Triangle xyz has vertices x(1,3), y(0,0)

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)