Answer:
To find the answer you just have to solve 4(x-3)
Step-by-step explanation:
4(x-3)=4x-12
So B or 4x-12 is correct.

Independent variable = x(Cans of frozen OJ)
dependent variable = y(total cost)
Answer:
24
Step-by-step explanation:
4x+16 + 68 = 180
4x + 84 = 180
4x = 96
x = 24
I would use elimination. I would multiply 4x+3y=2 by 3 so the it becomes 12x+9y=6, and I would multiply the bottom equation by 4 so that it becomes 12x+8y=4. Because I am using elimination I have to get rid of one variable, I chose to get rid of X hence that the coefficient of X in each equation is now 12. i simply subtract both equations and get y by itself. y=2. I plug in Y to find x in either of the original equations, where I get x=-1. To check my work substitute the values of x and y in the other equation. 4(-1)+3(2)=2 -------> 2=2