During a clothing store's Bargain Days, the regular price for t-shirts is discounted to $4.50 each. You have an additional coupon for $3.00 off the total purchase, regardless of how many shirts are purchased. Write a rule for the function p(t) that expresses the final sale price of t t-shirts with the coupon applied.

To write a rule for the function p(t) that expresses the final sale price of t t-shirts with the coupon applied, we need to consider the regular price of the t-shirts and the additional coupon.

The regular price for each t-shirt is $4.50. So, without the coupon, the total price of t t-shirts would be 4.50t.

However, we also have an additional coupon of $3.00 off the total purchase. This means that the final sale price of t t-shirts would be 4.50t - 3.00.

Therefore, the rule for the function p(t) would be:
p(t) = 4.50t - 3.00