When economic profit is zero, producers do not have any incentive to deviate from the current line of production

If disposable income increases from $5 trillion to $6 trillion and, as a result, consumption expenditure increases from $7 trillion to $7.8 trillion, the MPC is

A) 1.0. B) 6 ÷ 7 = 0.86. C) 6 ÷ 7.8 = 0.77. D) 5 ÷ 7 = 0.71. E) 0.8.

Refer to the figure above. If the engineer spends his entire time on producing websites, how many Web sites can he produce?

A) 2 B) 5 C) 10 D) 12