calculate 17% of 8
good so Martha used 1.36 gallons Brett used .18 of the total oil, so he used .18*8 gallons = ?
good, so Martha used 1.36, Brett used 1.44, and Mike used 0.7, so who used the most?
read the problem again, and look at what we did...
dont we do 0.7 * 8
nope, it tells us that Mike used 0.7 gallons
but it also tells us that brett used 0.18
Nope, it tells us that Brett used 0.18 OF THE TOTAL, so 0.18*8