A monopoly is considering selling several units of a homogeneous

A monopoly is considering selling several units of a homogeneous product as a single package. A typical consumer’s demand for the product is Qd = 90 – 0.5P, and the marginal cost of production is $110.
a. Determine the optimal number of units to put in a package.

b. How much should the firm charge for this package? 

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