Answer:
B. 48x - 56
Step-by-step explanation:

Answer:
Option 3
Step-by-step explanation: I think it is option 3
Y= 12 -3x so if you take x as 0 y=12 x=1 y=9 x=2 y=6
(0, 12) (1,9), (2,6) are on the graph
He needed to divide instead of subtracting it on the last step.
Answer: 7.2x10 3
Step-by-step explanation: