The answer should be 24 gallons and a half
Set up an equation and then solve for x. Luke has x amount and Tom has twice as many so that is 2x.
x + 2x =39
3x=39
Divide by 3
x= 13 so ...
Luke has 13 marbles and Tom has 2 times x so Tom has 2x13=26 marbles. 13+26=39
lucy = 148.5 inches
barry = 8/9L
robert = 7/6B
a) barry = 8/9(148.5)
b) 132 inches
c) 7/6[8/9(148.5 inches)]
d) 154 inches
=28/27 times lucy
Hope you Enjoy!