Exercise 4 Consider the problem equivalent to problem 3 with the only modification that the driving cost increases to t = 30$/km. 1. Does the consumer, who is indifferent between driving to station 1 or 2 if both stations set prices at 0, want to buy gas at either station? 2. Based on your answer to the previous question, determine the location of the consumer who is indifferent between buying at station 1 and not buying given the price pl. 3. Find the demand function for station 1 as a function of pl. 4. Find the optimal price for station 1