Im saying C is the awnser
F=72
g=6
------------

Therefore:


But what is e?
E=76
G=32
g=6
And:

Which means that:

If you take this value into account, you will discover that f is...

So I would have to say that the answer is approximately (c).
Area = Length x width.
Area of room = 15 x 24 = 360 square feet.
Now multiply the square feet by the cost:
360 x 5 = $1800
It will cost $1,800

We're dividing fractions, so we will flip the one in the denominator upside down and we will multiply it with the numerator.

Let's equal this too 8/x

Cross multiply.

Divide both sides by 15.