A certain shampoo is available in two sizes. A 23.7 -ounce bottle costs \( \$ 4.97 \). A 33.8 -ounce bottle costs \( \$ 7.48 \). Find the unit price for each size. Then state which size is the better buy based on the unit price. Round your answers to the nearest cent. \( \begin{array}{l}\text { Unit price for the } 23.7 \text {-ounce bottle: } \$ \square \text { per ounce } \\ \text { Unit price for the } 33.8 \text {-ounce bottle: } \$ \square \text { per ounce } \\ \text { The better buy: } \\ \text { The } 23.7 \text {-ounce bottle } \\ \text { O The } 33.8 \text {-ounce bottle }\end{array} \)

To determine which shampoo bottle offers the better value, we'll calculate the unit price (price per ounce) for each size and compare them. ### Calculations: 1. **23.7-ounce bottle:** \[ \text{Unit Price} = \frac{\$4.97}{23.7 \text{ oz}} \approx \$0.21 \text{ per ounce} \] 2. **33.8-ounce bottle:** \[ \text{Unit Price} = \frac{\$7.48}{33.8 \text{ oz}} \approx \$0.22 \text{ per ounce} \] ### Summary: \[ \begin{array}{l} \text{Unit price for the } 23.7 \text{-ounce bottle: } \$0.21 \text{ per ounce} \\ \text{Unit price for the } 33.8 \text{-ounce bottle: } \$0.22 \text{ per ounce} \\ \text{The better buy: } \\ \text{The } 23.7 \text{-ounce bottle} \\ \text{O The } 33.8 \text{-ounce bottle} \end{array} \] ### Conclusion: **The 23.7-ounce bottle is the better buy** because it has a lower unit price of \$0.21 per ounce compared to the 33.8-ounce bottle's \$0.22 per ounce.