Exhibit 21-8 ​

Multiple Choice

Exhibit 21-8
​

-Exhibit 21-8 shows how output varies with the only variable input used in its production. If the cost of a unit of labor is $500, what is the approximate marginal cost of the 185th unit of output?

A) $2.50
B) $16.67
C) $12.50
D) $50.00
E) $100.00