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Let's calculate which bottle of sunblock offers the better value by determining the price per ounce for each bottle.

1. **4-ounce bottle price**: $8.49
   - Price per ounce = $ \frac{8.49}{4} = 2.1225 $ dollars per ounce.

2. **5-ounce bottle price**: $10.29
   - Price per ounce = $ \frac{10.29}{5} = 2.058 $ dollars per ounce.

### Conclusion:
- The **5-ounce bottle** is the better buy because its price per ounce ($2.058) is lower than that of the 4-ounce bottle ($2.1225).

Do you need more details or have any questions?

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Here are 5 questions that build on this:

1. How would the prices change if there was a discount on both bottles?
2. If you needed exactly 10 ounces of sunblock, how much would it cost for each option?
3. How can you calculate the savings per ounce between the two bottles?
4. What would the price per ounce be if the 4-ounce bottle cost $9.00 instead?
5. How can unit pricing help with grocery shopping decisions?

**Tip**: Always compare unit prices (price per ounce, per gram, etc.) when choosing between different sizes to get the best value!

Of the two bottles of sunblock shown, which is the better buy? Explain. The two bottles are: 4-ounce bottle priced at $8.49 and 5-ounce bottle priced at $10.29.

Determine the better buy by calculating the price per ounce for a 4-ounce bottle ($8.49) and a 5-ounce bottle ($10.29) of sunblock. Learn how to use unit pricing to compare products.

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