Respuesta :
The marginal product of the labor which joan can make a bottle 8 smoothies in an hour and when she is wokring with her friend they can make a total of 18 bottle of smoothies an hour. The formula is 18 / 2 = 9.9 is the marginal product of labor.So the answer is C. 9
Answer:
10
Step-by-step explanation:
Easiest possible explanation is because Joan can make 8 by herself with the help of a friend they're making 10 more (18/h)