125 = 5 * 5 * 5 = 5^3
Its a perfect cube.
All of the answer choices that you are given are incorrect. I have calculated it in all different ways and get the same thing and it is none of those. The correct answer would be -75 though.
One pizza serves four people so, you will need 10 pizzas for 40 people so that make the answer (A.)
The answer would be 12x^3+ 2x + 4
