This may not be correct but Georgia will be about nine if u subtract 6 from 15... And as for Jerry, if he swims for 4 hours, at 2 miles, he might be swimming 480 miles.. 2x60 (aka and hour x 2) 120.. Do that 4 times and u end up with about 480.. So sorry if I'm wrong
6-5x=3x
-5x-3=-6
-8=-6
x=-6/-8
= 3/4 or 0.75
D because you can just take the 0. off of 0.18!