Answer :

To find the cost per gallon when given a total cost and the number of gallons, follow these steps:

1. Identify the total cost: [tex]$\$[/tex]4.50[tex]$. 2. Identify the total number of gallons: $[/tex]2[tex]$ gallons. 3. To determine the cost per gallon, divide the total cost by the total number of gallons. Mathematically, this can be expressed as: \[ \text{Cost per gallon} = \frac{\text{Total cost}}{\text{Total gallons}} \] Substituting in the given values: \[ \text{Cost per gallon} = \frac{4.50}{2} \] 4. Perform the division: \[ \text{Cost per gallon} = 2.25 \] Therefore, the cost per gallon is $[/tex]\[tex]$2.25$[/tex].