The private tutoring industry consists of 100 identical tutoring companies, each with a marginal cost curve represented by = 120 + 2, where Q represents the number of private tutoring lessons offered. 3.1. Derive the industry supply curve for private tutoring lessons. 3.2. If the demand for tutoring lessons is represented by = 250 4, how many tutorial sessions are consumed at equilibrium? 3.3. Calculate the aggregate consumer and producer surplus at market equilibrium and discuss the meaning of these terms