#### Answer

In 2010, the predicted percent increase since 2009 is 45%.
In 2011, the predicted percent increase since 2009 is 100%.
In 2012, the predicted percent increase since 2009 is 155%.

#### Work Step by Step

$x+2x+10+4x-25=300$
$7x=315$
$x=45$
In 2010, the predicted percent increase since 2009 is 45%.
$2x+10=100$
In 2011, the predicted percent increase since 2009 is 100%.
$4x-25=155$
In 2012, the predicted percent increase since 2009 is 155%.