The estimated demand for a good is = 25 - 5P + 0.32M + 12PRwhere Q is the quantity demanded of the good, P is the price of the good, M is income, and PR is the price of related good R. If the price of the good falls by $4, the quantity demanded will ________ by ________ units.

A. increase; 50 units
B. decrease; 12 units
C. increase; 20 units
D. increase; 48 units
E. increase; 5 units


Answer: C

Economics

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