Answer:
x>-3 is the answer hope it helps
Let's let x equal the original price of the dress.
We know that 16.6666% is equal to 0.16666 in decimal form by dividing the percent by 100.
So we can set up the equation:

because we know the discount, and we know that the discount of the original price was subtracted from the original price.
So then let's simplify by taking out x, the common factor:

Then solve for x:



So now we know that the original price of the dress was $39.
Unfortunately, there are no given choices. However, I could provide the possible inequalities from the given problem. Converting the given to inequalities:
3.2x + 0.8y < 50
x + y = maximum
There is no other limiting equation (i.e. the total cost of the books) such that the, if you wanted to maximize x, results to minimum y and vice versa.