WILL GIVE BRAINLIEST PLS HELP ITS URGENT!!!during a clothing stores Bargain Days, The regular price for t-shirts is discounted by $5. There is a state sales tax of 5%, and The $5 discount is applied before the sales tax is calculated,a. Write an expression that shows the regular price r for a t-shirt minus the $5 discount.b. Write a rule for the function p(r) that expresses the final price p of a t-shirt with the withe the discount applied and sales tax added.c. How much would you pay during Bargain Days for a shirt regularly priced at $15.50?