Grace wants to sell her motorcycle, and Gregory is looking for a used motorcycle to buy. Gregory takes it for a test drive. Grace knows that the clutch is going out on her motorcycle, the fuel filter is leaking, and the tires will need to be replaced soon. If she does not disclose this information to Gregory and he cannot tell from his test drive, this is an example of
a. an external benefit.
b. asymmetric information.
c. an external cost. a public good.

Employees at a library check out books to patrons. books have an isbn and a name. the library sometimes has multiple copies of the same book. books have one or more authors. a patron is an individual who has an active (non-expired) library card. for each library card, we store the person's first and last names and their address. for each employee, we store their employee id, current salary, first and last name and their address. we also store the employee id of their current manager. each time we check out a book to a patron we need to store the date of the transaction, the employee who checked out the book to the patron, and the library card of the patron. some employees have library cards. if an employee patron turns in a book late, the fine that they pay is a percentage of their salary. some employees are authors who have library cards—they are allowed to check out as many books as they like.

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.

According to ceo heidi ganahl, camp bow wow requires a strong and consistent corporate culture to keep all local franchise owners "on the same page" and to follow a common template for the business and brand. this culture could become detrimental over time because: (a) strong consistent cultures are inflexible and incapable of adapting to environmental change (b) strong consistent cultures are too flexible and capable of adapting to environmental change (c) strong consistent cultures don’t perform well in any environment (d) the passing of time provides stability and predictability for businesses