signments > 23. Marginal Average Cost rginal Average Cost Compute and Interpret marginal average cost Question Given a cost function C(x) as C(x) = 5, 000 + 20x calculate the marginal average cost when .x = 20, use your result to estimate the total cost when x = 21, and calculate the percentage error between this estimate and the actual cost when x = 21. Give your answer as a percentage to two decimal places. Do not include the percent symbol in your answer. Provide your answer below: O FEEDBACK MORE INSTRUCTION US Next 20

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