It’s 3 because (x,y) & your coordinates were (3,5) so x is 3. x stays the same, hope this helps
I cannot help you with the first draging part since it needs to be done form your device.
But I can help you with the expression. Anything to the power of 0 power is equal to 1. Therefore:

Hope it helped,
BioTeacher101
It can be used to hold a prisoner for the police
Answer:
16
Step-by-step explanation:
4x2=8
8x2=16