Suppose there are three stores in a shopping center that would benefit from security lights in the parking lot according to the following inverse demand functions: Store Inverse Demand A: Upper P Subscript Upper A Baseline equals 60 minus Upper QPA = 60−Q B: Upper P Subscript Upper B Baseline equals 45 minus 2 Upper QPB = 45−2Q C: Upper P Subscript Upper C Baseline equals 30 minus 2 Upper QPC = 30−2Q If security lights cost $7070 each, in other words market supply is Upper P equals 70P=70, what is the efficient quantity of lights? The efficient quantity of lights is nothing. (Enter your response rounded to the nearest integer.) Now, if each store buys its own lights, there will be nothing securtity lights purchased. (Enter your response rounded to the nearest integer.)