Answer: i think it true if not sorry
Explanation:
Answer: The answer is ether a or c.
Explanation: I say this bc the Reagan Doctrine is anawnsed histery, and there was a Ripple Effect from Reagan's 'Economic War' on the USSR. So in conclusion im not that sure but at least i can tell you that it is one of thous two answers :)
I believe the answer is C, good luck!
On this problem you don't need to subtract. They want to know the total amount of people who attended so you would add.
1 1 1 (carried over numbers)
12,679 (Line it up with 8491, ones place to ones place and so on)
+8,491
21170 (answer)