B.
This is because perpendicular lines have opposite and flipped slopes.
Because, 9 x 9 = 81. Hope I helped!
Answer:
20 x 4 + 3
Step-by-step explanation:
Answer:
-5
Step-by-step explanation:
slope formula= 
slope of line

Answer:
the answer is 400-8=394.
Step-by-step explanation: