In the above table, the marginal revenue from the fourth unit of output is

To operate efficiently, an economy generally "needs" ________ unemployment

A) structural B) cyclical C) seasonal D) frictional

Lizzie's budget line is shown in the figure above. The relative price of a cookie is ________ per cookie

A) 2 magazines B) 0.5 of a magazine C) $1 D) $2