Answer:
The graph in the attached figure
Step-by-step explanation:
we have

The solution of the inequality is the shaded area below the dashed line
The equation of the line is 
The slope of the line is positive 
The y-intercept of the line is the point 
The x-intercept of the line is the point 
so
The graph in the attached figure
I believe the answer is y ≤ -3x + 5.
I have not learned inequalities yet so if I am wrong, then :/
According to m.a.t.h.w.a.y:
A because it has to be less than or equal to 143.15 so it can not be C or D. And you dont need the extra x so it is choice A
1/10x + 6 = 2/5x
6 = 2/5x - 1/10x
6 = 4/10x - 1/10x
6 = 3/10x
6 / (3/10) = x
6 * 10/3 = x
60/3 = x
20 = x <=== the gas tank can hold 20 gallons