Answer:
$86.67 is the profit maximizing price for the monopolist
Explanation:
In order to find the profit maximizing price for the monopolist using its price elasticity and marginal cost we have to use the formula
Price= Marginal cost* (elasticity/elasticity+1)
Marginal cost = $65.0065
Elasticity = -4
Price = 65.0065 *(-4/-4+1) = 65.0065*(-4/-3)= 86.67