Solve the all arts of given question:
Question: In a museum devoted to the history of photography, you are setting up a projection system to view some historical 4.0 inch x 5.0 inch slides. Your screen is 6.0m from the projector lens, and you want the image to be 4.0 ft x 5.0 ft on the screen.
Part I: What focal length lens do you need?
Part II: How far from the lens should you put the slide?
Please show work I think I have the answer just not positive.