I’m sorry but I think you forgot to attach the picture of the problem to your question
X-2y=1
subtract x
-2y = 1-x
divide by -2
y = x-1
2
Angle 3 and angle 4 are supplementary angles and when added together need to equal 180 degrees.
To find angle 4 subtract angle 3 from 180.
Angle 4 = 180 - 101 = 79 degrees.
Answer:
B. 1
Step-by-step explanation:
they only cross at one point... look below