A firm operates in a perfectly competitive output market with a product price of $12. If the marginal product of the last worker employed is 3 units and the firm competes in a perfectly competitive labor market, then the wage must be ?

The valve seat performs two functions: it provides a seal for the valve in the combustion chamber, and it provides a cool surface to carry heat away from the valve. most valves use a seating angle.

Which statements describe continental crust? select the three correct answers. a-it is formed in all parts of the continents. b-it is made mostly of volcanic rock. c-it is destroyed by melting near the top of the mantle. d-it is less than 10 km thick. e-its ages ranges from very young to more than 4 billion years old.

You are a psychologist who has been asked to write a brief report about the possible causes of anxiety (nervousness, fears, in your report, write up a summary that explains and examines anxiety according to each of the psychological perspectives: psychoanalytic behavioral cognitive humanistic biological sociocultural