The density is defined like:
Density = mass / volume
We know the volume of gasoline and the density. Using that formula we can find the mass that is our unknown.
mass of gasoline = ?
density of gasoline = 0.800 kg/L
volume of gasoline = 246.44 L
Density = mass/volume
mass = volume * density
mass = 246.44 L * 0.800 kg/L
mass = 197.2 kg
Answer: we have 197.2 kg in 246.44 L of gasoline.