document.write( "Question 541146: a ballon initally has a radius of 4cm. more air is blown into the ballon until it has a radius of 9cm. How has the surface area and volume of the ballon changed? \n" ); document.write( "
Algebra.Com's Answer #354077 by friesr(113)\"\" \"About 
You can put this solution on YOUR website!
Here is a youtube video that should get you going:\r
\n" ); document.write( "\n" ); document.write( "http://www.youtube.com/watch?v=XHjCbfJw4lM
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