If demand is unit elastic, then a 10 percent increase in the price will lead to a 10 percent increase in quantity demanded

The table above shows a nation's production possibilities frontier. If the nation wants to produce 4 robots and 34 pizzas,

A) the nation will be producing inefficiently. B) the opportunity cost is 9 pizzas. C) it will shift the production possibilities frontier. D) it will be unable to do so because the production point is unattainable. E) the nation will then be producing at a production efficient point.

In the figure above, the economy is at point A when the price level rises to 120. Money wage rates and other resource prices remain constant. Firms are willing to supply output equal to

A) $15.5 trillion. B) $16.0 trillion. C) $16.5 trillion. D) None of the above answers is correct.