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
Answer:
460
Step-by-step explanation:
23x20=460
First you need to know that the internal angles of a triangle always equals 180°. Therefore:
15+45= 90°
Then since the angles should equal 180, you do:
180-90=90
So the missing angle equals 90°
Answer:
monomial
Step-by-step explanation:
Answer:
Step-by-step explanation:
1 will be B, dont know bout 2