Problem
Trevin puts 8 gallons of gas in his car and pays \( \$ 22 \). What is the cost of 1 gallon of gas? Complete the table. \begin{tabular}{|c|c|c|} \hline Cost (dollars) & & 22 \\ \hline Gas (gal) & 1 & 8 \\ \hline \end{tabular}
Solution
Step 1 ：\( \text{Cost per gallon} = \frac{\text{Total cost}}{\text{Number of gallons}} \)
Step 2 ：\( \text{Cost per gallon} = \frac{22}{8} \)
Step 3 ：\( \text{Cost per gallon} = 2.75 \)
