What are the official constitutional duties of the vice president?

To cast a tie-breaking vote when the senate is in deadlock. To preside over and certify the official vote count of the U.S. Electoral College.  To preside over most of the impeachment trials of federal officers.

 hope this helps

if you are on the computer you can not take a picture but you can upload one but i am not sure about phones but i'm pretty sure it's the but to upload one just click the paper clip looking thing/ link thingy thing and upload a pic