A lower nominal money supply is equally demanded, given each interest rate, at a ________ level of income, meaning that the LM curve has shifted to the ________

In the market for used cars

A) the market is efficient because the cars are bought by the people who value them the most. B) the market is inefficient because lemons drive out the high quality cars. C) no cars are sold, because people don't like buying lemons. D) Not enough information to determine.

A firm wants to minimize the total cost of producing 100 tons of dynamite. The firm uses two factors of production, chemicals and labor. The combination of chemicals and labor that minimizes production costs will be found where

A) the marginal products of chemicals and labor are equal B) the ratio of the amount of chemicals used to the amount of labor used equals the ratio of the marginal product of chemicals to the marginal product of labor C) the ratio of the amount of chemicals used to the amount of labor used equals the ratio of the price of chemicals to the wage rate D) the production of an additional unit of dynamite costs the same regardless of whether chemicals or labor are used E) none of the above