Ray should buy the first one because it has the greater volume by 1,440 square inches.
Tank 1: 20x20x18=7,200
Tank 2: 40x12x12=5,760
7,200-5,760=1,440
Slope is

Then you use the equation

Where b is the y-intercept. To find it, plug in x and y from one of the points. Say, point 1 (1,10):

You know m (from above) and now you can solve for b.
Rearrange terms:

And that will be the answer.
Make sense?
The answer is
the option A
<span>The graph shows the solution of the system of inequalities
y> -3
y<=-x
using a graph tool
see the attached figure</span>
Per month means multiply
Total means the amount your ending with but for this you could say add
Final answer f = 4.75 + 10m
Answer:

Step-by-step explanation:
