I would say "c".
Two solutions were found :
<span><span>x =(8-√116)/2=4-√<span> 29 </span>= -1.385</span><span>
x =(8+√116)/2=4+√<span> 29 </span>= 9.385</span></span>
<h2>
Hello!</h2>
The answer is:
The correct option is:
A) $74.55
<h2>Why?</h2>
To calculate how much does Sonya pay for the four pairs altogether, we need to calculate the original price after the 50% discount and the taxes.
Calculating we have:

We have that before the tax, the price of the shoes was $17.5, then, calculating the price after the taxes, we have:

So, we have that the price after discount and the taxes is $18.637 per each pair of shoes.
Hence, the price for the four pairs of shoes will be:

Have a nice day!
The answer is A down five over four and intercepts the y at -1