To find the unit rate of miles per gallon, you can divide the total number of miles driven by the total number of gallons of gas the tank holds.
Lars can drive 330 miles on a full tank of 15 gallons.
So, the unit rate is calculated as follows:
\[ \text{Miles per gallon} = \frac{\text{Total miles}}{\text{Total gallons}} = \frac{330 \text{ miles}}{15 \text{ gallons}} = 22 \text{ miles per gallon} \]
Therefore, the unit rate is 22 miles per gallon.
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