Answer:
A
Step-by-step explanation:
You're correct. The Y intercept is the B. And 3 the slope.
Answer:
I might be able to help you if you add a picture
5x - 100 + x - 20 = 180 (sum of supplementary angles is equal 180)
6x - 120 = 180
6x = 300
x = 50
x - 20 = 50 - 20 = 30
so
3y = 30 (vertical angles are equal)
y = 10
Your range is 8
take your largest minus the smallest
8-0=8
hope this helps