During a clothing store’s Bargain Days, the regular price for T-shirts is discounted to $8.25. You have an additional coupon for $5.00 off, regardless of how many shirts are purchased.

If you're planning to use the $5.00 off coupon at the clothing store's Bargain Days, you can subtract the coupon value from the total cost of the T-shirts you're purchasing.

Here's how you would calculate the cost for a single T-shirt with the discount and coupon:

1. Start with the discounted T-shirt price: $8.25
2. Subtract the coupon value from the price of one T-shirt (since the coupon does not depend on quantity): $8.25 - $5.00 = $3.25

So, after the discount and using the $5.00 coupon, the price you would pay for one T-shirt would be $3.25.

If you are buying multiple T-shirts:

1. Multiply the discounted price by the number of T-shirts you want to buy: $8.25 x (number of T-shirts)
2. Subtract the coupon value from the total cost of all the T-shirts: (Total cost of T-shirts at discounted price) - $5.00

For example, if you wanted to buy 3 T-shirts, you'd calculate it as follows:

1. $8.25 x 3 T-shirts = $24.75 (total cost without the coupon)
2. $24.75 - $5.00 coupon = $19.75 (total cost with the coupon applied)

Keep in mind that this calculation doesn't take sales tax into account, which may be added depending on local tax laws. If you need to include sales tax, you would need to calculate the tax on the discounted total before subtracting the coupon value.