Suzy earned $6.10 per hour in 2008 and $9.15 in 2011. How many times greater was the amount Suzy earned per hour in 2011 then in 2008
$9.15 - $6.10= $3.05
The question is not how much greater, but "How many times greater."
3.05/6.10 = 50% greater
$9.15 - $6.10= $3.05
3.05/6.10 = 50% greater