Rodrigo operates a dry-cleaning service and charges customer…

Rodrigo operates a dry-cleaning service and charges customers $5 per article of clothing. Based on his knowledge of operations, the 1,000th piece of clothing costs him $4.95 to dry-clean. If he takes additional business, however, the 1,001st piece will cost $5 for the service. Does he take the additional business?

Karla, a landscaper, is trying to decide whether to hire Ant…

Karla, a landscaper, is trying to decide whether to hire Anton, a student, to help her with a big job. She would pay him $20 per hour. Every task takes Anton three times as long to complete as it takes Karla. Karla is able to earn $90 per hour for her own time and has more landscaping jobs than she can handle. What is Karla’s opportunity cost of hiring Anton?