Please help with attached quiz it has steps from 1-13. the main 3 questions are

Please help with attached quiz
it has steps from 1-13. the main 3 questions are 14-16. that i need help with, then afterwards please go to the bottom where it says (Section 2) and upload images of refracting Telescope, Newtonian Telescope, Coude Telescope, Cassegrain Telescope, and image of four telescope sketches.
very fast and simple lab.