Answer: 
Step-by-step explanation:
Given: Density of tank = 0.4 fish over feet cubed.
We know that, 
Therefore,

Hence, the volume of the tank = 
To solve this, you will need to divide the payment by 4 if she is doing four of the same payments.
196 / 4 = 49
so she will pay $49 a month.
Hi there!
The next step is most likely the following:
3x = 18
This is because you add up 3 on both sides on the equation.
Answer8x-7
Step-by-step explanation:
6x-12+2x+5
8x-7