Answer:
C. (1,2)
Step-by-step explanation:
They intersect at 1,2.
Answer:
x=3
Step-by-step explanation:
7x=21
divide by 7
x=3
Use the substitution method
f(x)= 3-2x
f(4)= 3-2(4)
Do multiply first then subtract
= 3-8
= -5
Answer : f(4)= -5
I think you have to add the costs. Hope this helps
