Let's get the amount of people that are in the percent error by multiplying .04 (4%) by 15000.
.04 x 15000 = 600
Now we can add or subtract 600 from 15000.
15000 - 600 = 14400
15000 + 600 = 15600
So your answer would be B, t<span>he actual number of people is either 14,400 or 15,600.</span>
-3 because it reduced -3 every hour of you divide -12 by 4 you will get -3 which is the average
-3 x -4 = 12
Because the negatives cancel each other out
Therefore leaving you with 3 x 4 and that equals 12