Answer:
r= 10
Step-by-step explanation:
30 - 20 = 10
Answer: The answer is A and D
Step-by-step explanation:

a parallel line to that one above, will have the same exact slope, since parallel lines have the same slope.
Answer:
The capital B refers to the base of the area
Step-by-step explanation:
Slope = (-1 + 3)/(-4 + 3) = 2/-1 = -2
answer
slope of PQ = -2