Final answer:
To find the cost price of Ginny's Cafe's cookies, subtract the markup of $3.25 from the selling price of $6.50, resulting in a cost price of $3.25.
Step-by-step explanation:
The question asks us to calculate the cost price of the cookies before markup. Markup is the difference between the selling price and the cost price. In this case, the markup is given as $3.25 and the selling price is $6.50. To find the cost price, we subtract the markup from the selling price:
Selling Price - Markup = Cost Price
$6.50 - $3.25 = $3.25
Therefore, the cost price of the cookies is $3.25, which corresponds to option b).