<span>-28x²-12x = -4x(7x+3) the first one is answer</span>
Answer: A: the possible income from producing an additional item.
Step-by-step explanation: The actual definition of marginal cost is the cost added by producing one additional unit of a product of service.
I think the best answer is 3 to 9 but thats not a answer so 3 to 6
