ABC Inc. incurred the following costs for the last 3 months: Production in units: 40,000 50,000 60,000 Factory rent: $ 10,000 $ 10,000 $ 10,000 Indirect Manufacturing costs: $ 50,000 $ 60,000 $ 70,000 Selling costs: $ 60,000 $ 75,000 $ 90,000 Commissions: $ 120,000 $ 150,000 $ 180,000 Assuming that ABC was to produce and sell 80,000 units next month, how much would the company incur in selling costs