Answer:
it should be 67/65 or if in mixed number form : 1 2/65
Easy,
100 gallons=800 pints
There are 8 pints to a gallon. Since 100 gallons is the same as 800 pints, that is larger than 400 pints, Witch is also 50 gallons.
So ill say 100 gallons are bigger. :)
(2/3)*(c-18)=7 <em>(Multiply terms on both sides of equation by 3)</em>
2(c-18)=21
2c-36=21
2c=57
c=57/2
c=28.5
