Maddy purchases 2 pounds of beans and 3 pounds of rice per month when the price of beans is $2 per pound. She purchases 1 pounds of beans and 4 pounds of rice per month when the price of beans is $3 per pound. Maddy's cross-price elasticity of demand for beans and rice is
a. 0.71, and they are substitutes.
b. -0.71, and they are complements.
c. 1.4, and they are substitutes.
d. -1.4, and they are complements.
a
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