Joe's income is $500, the price of food (F) is $2 per unit, and the price of shelter (S) is $100. Which of the following represents his marginal rate of transformation of food for shelter?

Joe's income is $500, the price of food (F) is $2 per unit, and the price of shelter (S) is $100. Which of the following represents his marginal rate of transformation of food for shelter?



A) -5
B) -50
C) -.02
D) None of the above.


Answer: -50


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