Alex is training for a triathlon, a timed race that combines swimming, biking, and running. alex has only 20 hours per week that he can devote to training for his race. which basic principle of individual choice does this sentence best illustrate? people usually exploit opportunities to make themselves better off. all costs are opportunity costs. many decisions are made on the margin. resources are scarce.

Your sister is thinking about starting a new business. the company would require $375,000 of assets, and it would be financed entirely with common stock. she will go forward only if she thinks the firm can provide a 13.5% return on the invested capital, which means that the firm must have an roe of 13.5%. how much net income must be expected to warrant starting the business? a. $41,234b. $43,405c. $45,689d. $48,094e. $50,625

In a transportation minimization problem, the negative improvement index associated with a cell indicates that reallocating units to that cell would lower costs.truefalse

Who owns a renter-occupied apartment? a. the government b. a landlord c. the resident d. a cooperative