A proportional tax charges the same percentage of income, regardless of the size of income

If Congress passed a one-time tax cut in order to stimulate the economy in 2014, and tax rate levels returned to their pre-2014 level in 2015, how should this tax cut affect the economy?

A) The tax cut would increase consumption spending more than would a permanent tax cut. B) The tax cut would lower the price level in 2014. C) The tax cut would increase consumption spending by the same amount as would a permanent tax cut. D) The tax cut would increase consumption spending less than would a permanent tax cut.

A monopoly sells 10 units of output at $10. If the MR of the 11th unit is $4.50, then the price of the 11th unit is

A) also $10. B) $9.50. C) greater than $10. D) $7.25.