A) a barter system that does not rely on money or other currency.
Do you need the answer from the quadratic formula? if so:

x^2=a
-3x=b
-18=c






Your answer would then be 6 and -3
"Florida gained representatives and thus electoral votes because of census data showing population increase" is the one among the following choices that explains <span>the data shown on this map. The correct option among all the options that are given in the question is the fourth option or option "D". I hope it helps you.</span>
Answer: It purifies the water and the water begins to bubble from the extreme warmth and hot temperature from the fire or blaze.
Explanation: hope this helps <3