What symbolic number is used in the design of Notre Dame’s west façade? A. one B. three C. two D. four

(Don't Answer just to farm points) Thanks :D

What function should you choose if you want to make a copy of a digital image file to back it up? a) save b) copy c) save as d) all of the above

For the difference command to work, what needs to happen?

Ineed this to be answered fast and you i would appreciate it1. what benefits are there to using an online filter app? 2. of the apps you researched, which would you choose to edit your own photos? why would you choose this app over the other ones? 3. if you could choose between using the camera accessory filters that connect to your camera or the photo editing app filters, which would you choose and why?