To find the unit rate of miles per gallon that Lars gets, you can use the formula:
\[ \text{Miles per Gallon (mpg)} = \frac{\text{Total Miles}}{\text{Total Gallons}} \]
In this case, Lars drives 330 miles on a full tank of gas, which has a capacity of 15 gallons. Plugging in the values:
\[ \text{mpg} = \frac{330 \text{ miles}}{15 \text{ gallons}} \]
Now, calculate the value:
\[ \text{mpg} = 22 \text{ miles per gallon} \]
So, Lars gets 22 miles per gallon.