Think its 5 dollars
Most people don't do what the game wants you to do. Bloons tower defense series is supposed to make you do maths. Adding up how much money you have got to how much you can do with the things that pop the balloons. But as I say, most people just randomely upgrade and buy stuff. so there is a little maths practice in this game.
Depending on what kind 1.00-10.00 for 12 balloons
About 25 Cents Each Balloon .
it cost 300 dallors
from where
Click on a tower you have and at the bottom of the screen, there will be a picture. it will be red or green, depending on how much money you have.
the balloon prices satrt at $1 or higher
Depends on where you buy them and the type of balloons you buy. Obviously, if you want the holographic foiled ones, those are going to cost a bit more. However, there are some affordable balloons you can find online, if you are planning far enough ahead.
a lot
Lots!
nothing
$1 billion