You purchased equipment costing $1,000 to use for a lawn-mowing business to earn money for college during the summer. The first week in July, your college roommate asks you to help him paint a house the following week. If you agree, you will have no time to mow Revenue from mowing would be $1,200. Your roommate has offered you $1,400 to help him paint. Additional mowing costs for the week would be $100, and additional painting costs would be $80. Transportation costs would be $50 for either job. Identify the total amount of any sunk cost(s). $1,200 $1,000 $1,400 $100