Answer:
I was totally in your shoes then..
Step-by-step explanation:
Watch Fort Bend Tutoring on YT, he got me through those math problems...I can assure it will help, and he makes Math fun
Answer:

Step-by-step explanation:

Double negative = Positive:

Apply negative exponent formula:

Multiply:

Apply exponent rule: 
Thus, 
Simplify:

Tangency is when a line is fully outside the circle and touches it in one place.
The point of tangency would be point H
Answer:
16
Step-by-step explanation:
2^4 is the same thing as 2*2*2*2*2. 2 times 2 is 4, times 2 is 8, times 2 again is 16.