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
30 cups, because, 1 fl oz equals 0.125 cups, I hope this helped! :)
Answer:
Graph A
Step-by-step explanation:
I had this question in my class and got it right with answer A :')