In the accompanying table,assume that the price of ice skates increases from $10 to $20 per pair.Using the midpoint method,calculate the price elasticity of demand for ice skates for hockey players. 
Definitions:
Nerve Cells
Specialized cells that transmit electrical signals throughout the body, also known as neurons.
Dendrites
Branch-like extensions of neurons that receive signals from other neurons or sensory stimuli.
Axon
A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.
Soma
The cell body of a neuron, containing the nucleus and metabolic machinery necessary for cell maintenance and function.
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