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Economics - Microeconomics

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I just started this new problem. I answer the problem, but need to know whether I have the right answers, and is my work clear. (See attachment)

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Solution Summary

The midpoint and elasticity in Microeconomics is examined. A complete, neat and step-by-step solution is provided in the attached file.

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3. Using the midpoint formula, calculate elasticity for each of the following changes in demand by a household.

P1 P2 Q1 Q2

Demand for:
A. Long-distance $0.25 per $0.15 per 300 min 400 min
Telephone Service min. min. per month per month

B. Orange Juice 1.49 per 1.89 per 14 qt per 12 qt per
Qt ...

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