Tad and some friends decided to go to a fancy ice cream shop for a treat. Tad orders a Sundae for $3.97, Jayden orders two scoops on a cone for $2.59, and Charlie gets the $1 scoop special. There is 5% tax on the ice cream, and you got great service (she put extra sprinkles on top!), so you give your server a 20% tip. What is their total bill?