3 (had to feel the space with words)
Answer:30
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given
Line passes through 
Equation of line when it passes through two points 

Insert the values
Answer:
See below.
Step-by-step explanation:
The circumstance is that the circle started out as a sphere. It was taking a walk down the street. A piano fell on it, squashed it, and it became a circle.
Answer:
Step-by-step explanation: