When the price of good y increases from $2 to $3, the quantity demanded for good x decreases from 20 units to 10 units. using the midpoint method for elasticity, calculate the cross-price elasticity of demand between goods x and y. (round all decimal calculations to the closest ten-thousandths so your percentages are rounded to the closest hundredths; round your final answer to the closest hundredths.) are goods x and y complements or substitutes?



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