I’m pretty sure that the answer is D
A quadratic function models the profit of the company and the maximum/minimum value of the quadratic function occurs on its vertex.
The given function is:

The equation is already in standard form, the vertex of the parabola as seen from the equation is (5,12)
This mean if the company sets the price of socks to $5 they will earn a maximum profit which is $ 12 million
2(-1) + 3 = -2 + 3 = 1 Hence the third option.
0 / 6 is equal to 0 because anything that divides 0 will always be zero but never if the problem is 6/0
Answer: -6
Step-by-step explanation: -|b-a|
-|-2-4|
-|-6|
-6
Once you get rid of the absolute value bars the negative sign is still outside of them making 6 negative again. Hope this helped! :P