Consider the following diagram of a monopoly. 
Assuming that the monopoly is at its profit-maximising point, identify the values of its marginal revenue, marginal cost, average revenue and price.
Definitions:
Surgical Destruction
A medical procedure where tissue is deliberately destroyed to remove harmful entities like tumors.
Brain Tissue
The collection of neurons, glial cells, and other components that make up the physical substance of the brain.
Lesion
Tissue destruction. A brain lesion is a naturally or experimentally caused destruction of brain tissue.
Neurotransmitter
Chemical substances in the nervous system that transmit signals from one neuron to another across synapses.
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