To determine the cost per pound for each type of cat litter, we can use the following formula:
\[ \text{Cost per pound} = \frac{\text{Total cost}}{\text{Total weight in pounds}} \]
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Clean Cats:
- Total cost: $10
- Weight: 25 pounds
\[ \text{Cost per pound for Clean Cats} = \frac{10}{25} = 0.4 \text{ dollars per pound} \]
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Forever Fresh:
- Total cost: $18
- Weight: 40 pounds
\[ \text{Cost per pound for Forever Fresh} = \frac{18}{40} = 0.45 \text{ dollars per pound} \]
Comparing both costs:
- Clean Cats: $0.40 per pound
- Forever Fresh: $0.45 per pound
The better deal is Clean Cats at $0.40 per pound.