Answer:
32 miles per gallon.
Step-by-step explanation:
We are supposed to find unit rate for the given scenario.
144 miles on 4.5 gallons.
To find unit rate, we will divide 144 by 4.5 as:
[tex]\text{Unit rate}=\frac{144\text{ miles}}{\text{4.5 gallons}}[/tex]
[tex]\text{Unit rate}=\frac{32\text{ miles}}{\text{gallon}}[/tex]
Therefore, unit rate for our given situation is 32 miles per gallon.