Question: If a $20 decrease in price of long distance calls from ($50-$30) leads to a $45 increase in quantity of calls demanded from ($80-$125). Conclude

If a $20 decrease in price of long distance calls

If a $20 decrease in price of long distance calls from ($50-$30) leads to a $45 increase in quantity of calls demanded from ($80-$125). Conclude that demand for phone calls is 1. Unitary elastic 2. Elastic 3. Inelastic

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