Question $16$

$3$ pts

When calculating marginal cost at quantity $q,$ both $C(q+1)-C(q)$ and $C^{\text{'}}(q)$ will give the same answers.

When the monthly sales are $100$ units, the marginal cost is $$2\mathrm{.}00$ per unit, and the marginal revenue is $$1\mathrm{.}50$ per unit. In this case, we need to increase sales to improve profit.

If we know that profit is maximized at $q=100,$ then it is guaranteed that $R^{\text{'}}(99)>C^{\text{'}}(99).$