Question At the store, Brand A laundry detergent contains enough detergent for 64 loads and costs $$ \$ 11.97 $$, while Brand B detergent contains enough for 81 loads and costs $$ \$ 19.97 $$. Which is the better buy, Brand $$ A $$ or Brand $$ B $$ laundry detergent? Round your answer to the nearest cent if necessary.

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1. For Brand $$ A $$, the cost per load is:
   $$
   C_A = \frac{11.97}{64} \approx 0.187 \text{ dollars per load}
   $$
   
2. For Brand $$ B $$, the cost per load is:
   $$
   C_B = \frac{19.97}{81} \approx 0.2467 \text{ dollars per load}
   $$
   
3. Rounding to the nearest cent, we get:
   $$
   C_A \approx \$0.19 \quad \text{and} \quad C_B \approx \$0.25
   $$
   
4. Since Brand $$ A $$ has a lower cost per load, Brand $$ A $$ is the better buy.
Brand A is the better buy because it costs approximately \$0.19 per load, which is less than Brand B's \$0.25 per load.

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