The Reagan Doctrine, enunciated in 1985, suggested that under President Reagan U.S. national security policy would aim to "stop" the spread of
<span>communism by "rolling back" much of the spread of communism that had occurred earlier in the Cold War.</span>
I think the answer for the first one is "5 percent charged on purchases of ordinary goods."
For the second one I think the answer is "A tax that charges more for higher incomes."