Answer:
20.27
Step-by-step explanation:

Answer:
I think you meant to add a list of answers but didn't so here's the characteristics of a plane: Flat, two dimensional, extends infinitely, and is assembled about multiple points and lines.
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
the formula is y=mx+b
b is the y in which is 3
the m means slope which is in front of the x
so the slope is 2
Answer:

Step-by-step explanation:
Let
and 
<u>Determine slope</u>
<u />
<u>Use either ordered pair to find the y-intercept</u>
<u />
<u>Final equation</u>
<u />
Answer: 90 degrees
Step-by-step explanation: