We know that the side lengths of the square base are: x * x. The volume is 12, so for now, let's say that y is the other side length. Then, x * x * y = 12. We can solve for y: y = 12/x^2. Now, we find the surface area of the 5 sides.
Four of the sides have the same area: x * (12/x^2) = 12/x, so we multiply this by 4: 48/x.
The last side is the base: x * x = x^2.
We add 48/x to x^2:
x^2 + 48/x
So, the answer is the fourth choice, (d).
So amount minused=hours driven times gallons per mile=h times 2 or 2h
so we minus 2h
18-2h is the expression
To get the answer, divide 1 by 8
Which equals 0.125
And that is your answer.
Hope I Helped You!!! :-)
Have A Good Day!!!
