The above figure shows the marginal benefits and marginal costs of a college education. The efficient number of students is

Suppose that Dave has $200 to spend per week and he buys only magazines and pizza. The price of a pizza is $10 and the price of a magazine is $5. What is the maximum amount of pizza Dave can buy each week?

A) 40 B) 20 C) 200 D) 60

If there is a decrease in the expected future profitability of capital,

A) the aggregate demand curve will shift right. B) the aggregate demand curve will shift left. C) the aggregate demand curve will become steeper. D) the aggregate demand curve will be unaffected.