Answer:
b= 20 • c
b is equalled to how many bottles, which c is equalled to how many cases, since there is no number for how many cases then is just the variable "c".
Answer:

Step-by-step explanation:
I cannot draw a graph so im going to explain
on the bottom u write per month and on the side and then increase the amount of money by 20$.
82+109=191
125-93=32
163/15=10.9
403
x 585
————
2055
3286
+2055
——————
240,415
Hope that helps!