A bakery works out a demand function for its chocolate chip cookies and finds it to be q = D(x) = 678 – 20x, where q is the quantity of cookies sold when the cookie, in cents, is x. Use this information to answer parts a) through f) a) Find the elasticity 20x E(x) = 678-20x b) At what price is the elasticity of demand equal to 1? ¢ (Round to the nearest cent as needed.)

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