The expression 12g12g12, g gives the number of kilometers a car can travel using ggg liters of gasoline. How far can this car travel on 5 \dfrac125 2 1 5, start fraction, 1, divided by, 2, end fraction liters of gasoline?
12 g = km car can go on g liters
5 1/2 liters =g
12 g = 12 (5 1/2 ) = 66 km