When the price of a pizza is $10, the quantity of soda demanded is 300 drinks. When the price of a pizza is $15, the quantity soda demanded is 100 drinks. The cross elasticity of demand is equal to

When supply and demand for a product increase simultaneously, we

A) can predict that both the market clearing price and the equilibrium quantity will increase. B) can predict that both the market clearing price and the equilibrium quantity will decrease. C) cannot predict the market clearing price, but know that the equilibrium quantity will increase. D) cannot predict the change in either the equilibrium quantity or the market clearing price.

The demand for labor increases when the:

A. real wage increases. B. value of the marginal product of labor decreases. C. real wage decreases. D. value of the marginal product of labor increases.