I like A as the best one
420 = 100*price - (fixed costs)
220 = 60*price - (fixed costs)
If we subtract one from the other one, we get 200 = 40*price, price = 5
that said, fixed costs are 500 - 420 = 80
Now if we move -220 to the right in Answer A, we'll get:
y = 5x -300 + 220 = 5x - 80
So it looks like A describes the model best
The formula of an area of a circle:

We have
r = 1.8 m
π ≈ 3.14
Substitute:

Answer:
D. 2 to 1
Step-by-step explanation:
I calculated it logically
6 + 9x.....a common factor in both terms is 3
3(2 + 3x) <==
Answer:
87
Step-by-step explanation:
f(x) = 2x+1