Unique Creations holds a monopoly position in the production and sale of mag- nometers. he cost function facing Unique is estimated to be 1C = $100.000 - 200 a. What is the marginal cost for Unique? b. If the price elasticity of demand for Unique is currently -1.5, what price should Unique charge: What is the marginal revenue at the price computed in Part (b)? d. It a competitor develops a substitute for the magnometer and the price elasticity increases to -3.0, what price should Unique charge