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:
\(\text{Unit rate}=\frac{144\text{ miles}}{\text{4.5 gallons}}\)
\(\text{Unit rate}=\frac{32\text{ miles}}{\text{gallon}}\)
Therefore, unit rate for our given situation is 32 miles per gallon.