To find the equivalent price for the granola, we first determine the price per cup from the original advertisement.
The grocery store advertises that 15 cups of granola cost $6.75. Therefore, the price per cup can be calculated as follows:
\[ \text{Price per cup} = \frac{\text{Total cost}}{\text{Number of cups}} = \frac{6.75}{15} = 0.45 \]
So, the price per cup is $0.45.
Now let's evaluate the price per cup for each scenario to see which one matches $0.45.
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5 cups for $2.45: \[ \text{Price per cup} = \frac{2.45}{5} = 0.49 \]
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8 cups for $3.60: \[ \text{Price per cup} = \frac{3.60}{8} = 0.45 \]
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10 cups for $4.05: \[ \text{Price per cup} = \frac{4.05}{10} = 0.405 \]
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25 cups for $11.75: \[ \text{Price per cup} = \frac{11.75}{25} = 0.47 \]
The only scenario that represents an equivalent price at $0.45 per cup is 8 cups for $3.60.